MPEP § 211.04 — Delayed Benefit Claims (Annotated Rules)

§211.04 Delayed Benefit Claims

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 211.04, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Delayed Benefit Claims

This section addresses Delayed Benefit Claims. Primary authority: 35 U.S.C. 120, 35 U.S.C. 119(e), and 35 U.S.C. 119(e)(1). Contains: 7 requirements, 1 guidance statement, and 3 permissions.

Key Rules

Topic

Correcting Benefit Claims

11 rules
StatutoryRequiredAlways
[mpep-211-04-0e7b59249db5da55ee8b2673]
Petition for Unintentionally Delayed Claim Reference
Note:
A petition may be filed if the reference required by 35 U.S.C. 120 and 37 CFR 1.78 is not submitted within the required time period, along with specific documentation.

If the reference required by 35 U.S.C. 120 and 37 CFR 1.78 is not submitted within the required time period, a petition for an unintentionally delayed claim may be filed. The petition must be accompanied by: (A) the reference required by 35 U.S.C. 120 and 37 CFR 1.78 to the prior application (unless previously submitted); (B) a petition fee under 37 CFR 1.17(m); and (C) a statement that the entire delay between the date the benefit claim was due under 37 CFR 1.78 and the date the claim was filed was unintentional.

Jump to MPEP Source · 37 CFR 1.78Correcting Benefit ClaimsBenefit Claim in SpecificationTiming of Benefit Claim
StatutoryRequiredAlways
[mpep-211-04-4a76d2747012ea95e5a8323f]
Petition for Unintentionally Delayed Benefit Claim
Note:
The petition must include a reference to the prior application, a fee, and a statement that the delay was unintentional.

If the reference required by 35 U.S.C. 120 and 37 CFR 1.78 is not submitted within the required time period, a petition for an unintentionally delayed claim may be filed. The petition must be accompanied by: (A) the reference required by 35 U.S.C. 120 and 37 CFR 1.78 to the prior application (unless previously submitted); (B) a petition fee under 37 CFR 1.17(m); and (C) a statement that the entire delay between the date the benefit claim was due under 37 CFR 1.78 and the date the claim was filed was unintentional.

Jump to MPEP Source · 37 CFR 1.78Correcting Benefit ClaimsBenefit Claim in SpecificationContinuation Benefit Claims
StatutoryRequiredAlways
[mpep-211-04-41e886ca8eec3903c556071d]
Petition for Delayed Benefit Claim Over Two Years Must Explain Unintentional Delay
Note:
A petition to accept a delayed benefit claim over two years after the due date requires an explanation of all unintentional delay circumstances.

While the Director may require additional information whenever there is a question of whether the delay was unintentional, a person filing a petition to accept a delayed benefit claim more than two years after the date the benefit claim was due is required to provide additional explanation of the circumstances surrounding the delay that establishes that the entire delay was unintentional. This requirement is in addition to the requirement to provide a statement that the entire delay was unintentional in 37 CFR 1.78(c)(3) and (e)(3). See Clarification of the Practice for Requiring Additional Information in Petitions Filed in Patent Applications and Patents Based on Unintentional Delay, 85 FR 12222-24 (March 2, 2020). See also MPEP § 711.03(c) for further discussion of the “unintentional” delay standard.

Jump to MPEP Source · 37 CFR 1.78(c)(3)Correcting Benefit ClaimsContinuation Benefit ClaimsPetition for Delayed Benefit Claim
StatutoryInformativeAlways
[mpep-211-04-78147cc9e2f3a83e86a8153f]
Additional Explanation Required for Unintentional Delay Over Two Years
Note:
Petitioners must provide additional explanation when filing a delayed benefit claim more than two years after the due date, beyond stating that the delay was unintentional.

While the Director may require additional information whenever there is a question of whether the delay was unintentional, a person filing a petition to accept a delayed benefit claim more than two years after the date the benefit claim was due is required to provide additional explanation of the circumstances surrounding the delay that establishes that the entire delay was unintentional. This requirement is in addition to the requirement to provide a statement that the entire delay was unintentional in 37 CFR 1.78(c)(3) and (e)(3). See Clarification of the Practice for Requiring Additional Information in Petitions Filed in Patent Applications and Patents Based on Unintentional Delay, 85 FR 12222-24 (March 2, 2020). See also MPEP § 711.03(c) for further discussion of the “unintentional” delay standard.

Jump to MPEP Source · 37 CFR 1.78(c)(3)Correcting Benefit ClaimsBenefit Claim in SpecificationUnintentional Delay Standard
StatutoryInformativeAlways
[mpep-211-04-b0814f27e078bc9bd355b766]
Petition for Unintentional Delay Must Provide Additional Explanation
Note:
A petition to accept a delayed benefit claim more than two years after the due date must provide additional explanation establishing that the entire delay was unintentional.

While the Director may require additional information whenever there is a question of whether the delay was unintentional, a person filing a petition to accept a delayed benefit claim more than two years after the date the benefit claim was due is required to provide additional explanation of the circumstances surrounding the delay that establishes that the entire delay was unintentional. This requirement is in addition to the requirement to provide a statement that the entire delay was unintentional in 37 CFR 1.78(c)(3) and (e)(3). See Clarification of the Practice for Requiring Additional Information in Petitions Filed in Patent Applications and Patents Based on Unintentional Delay, 85 FR 12222-24 (March 2, 2020). See also MPEP § 711.03(c) for further discussion of the “unintentional” delay standard.

Jump to MPEP Source · 37 CFR 1.78(c)(3)Correcting Benefit ClaimsBenefit Claim in SpecificationContinuation Benefit Claims
StatutoryPermittedAlways
[mpep-211-04-1ba5e65bda09c1a31841d576]
Delayed Benefit Claim for Design Applications
Note:
Permits filing a petition under 37 CFR 1.78(e) along with a request for certificate of correction after patent grant if the benefit claim was not submitted during the design application's pendency.

Effective May 13, 2015, 37 CFR 1.78(d)(3) was amended to make the procedures under 37 CFR 1.78(e) to accept an unintentionally delayed benefit claim applicable to design applications where the benefit claim was not submitted during the pendency of the design application. Thus, a petition under 37 CFR 1.78(e) may be filed along with a request for certificate of correction after patent grant. See MPEP § 1481.03.

Jump to MPEP Source · 37 CFR 1.78(d)(3)Correcting Benefit ClaimsBenefit Claim in SpecificationContinuation Benefit Claims
StatutoryRequiredAlways
[mpep-211-04-8dfa78642c10b33ee530e28b]
Petition for Unintentionally Delayed Benefit Claim
Note:
A petition must be filed if the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 is not submitted within the required time period, along with specific documentation and a statement of unintentional delay.

Likewise, if the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 is not submitted within the required time period, a petition for an unintentionally delayed claim may be filed. The petition must be accompanied by: (A) the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 to the prior provisional application (unless previously submitted); (B) a petition fee under 37 CFR 1.17(m); and (C) a statement that the entire delay between the date the benefit claim was due under 37 CFR 1.78 and the date the claim was filed was unintentional. The Director may require additional information where there is a question whether the delay was unintentional. In particular, when the petition to accept a delayed benefit claim is submitted more than two years after the date the benefit claim was due, the petition will require additional explanation of the circumstances surrounding the delay that establishes that the entire delay was unintentional. See 37 CFR 1.78(c).

Jump to MPEP Source · 37 CFR 1.78Correcting Benefit ClaimsBenefit Claim in SpecificationTiming of Benefit Claim
StatutoryRequiredAlways
[mpep-211-04-ebf9296231b53fc4a722d537]
Petition for Unintentionally Delayed Benefit Claim
Note:
The petition must include a reference to the prior provisional application, a fee, and a statement that the delay was unintentional.

Likewise, if the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 is not submitted within the required time period, a petition for an unintentionally delayed claim may be filed. The petition must be accompanied by: (A) the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 to the prior provisional application (unless previously submitted); (B) a petition fee under 37 CFR 1.17(m); and (C) a statement that the entire delay between the date the benefit claim was due under 37 CFR 1.78 and the date the claim was filed was unintentional. The Director may require additional information where there is a question whether the delay was unintentional. In particular, when the petition to accept a delayed benefit claim is submitted more than two years after the date the benefit claim was due, the petition will require additional explanation of the circumstances surrounding the delay that establishes that the entire delay was unintentional. See 37 CFR 1.78(c).

Jump to MPEP Source · 37 CFR 1.78Correcting Benefit ClaimsBenefit Claim in SpecificationContinuation Benefit Claims
StatutoryPermittedAlways
[mpep-211-04-f74514f35817020b3a3b63d1]
Director May Require Proof of Unintentional Delay
Note:
The Director can ask for more details if there's doubt about whether the delay in submitting a reference was unintentional.

Likewise, if the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 is not submitted within the required time period, a petition for an unintentionally delayed claim may be filed. The petition must be accompanied by: (A) the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 to the prior provisional application (unless previously submitted); (B) a petition fee under 37 CFR 1.17(m); and (C) a statement that the entire delay between the date the benefit claim was due under 37 CFR 1.78 and the date the claim was filed was unintentional. The Director may require additional information where there is a question whether the delay was unintentional. In particular, when the petition to accept a delayed benefit claim is submitted more than two years after the date the benefit claim was due, the petition will require additional explanation of the circumstances surrounding the delay that establishes that the entire delay was unintentional. See 37 CFR 1.78(c).

Jump to MPEP Source · 37 CFR 1.78Correcting Benefit ClaimsBenefit Claim in SpecificationTiming of Benefit Claim
StatutoryInformativeAlways
[mpep-211-04-bb6c7fc40c6ad25468648b95]
Petition for Unintentional Delay Requires Additional Explanation After Two Years
Note:
When a petition to accept a delayed benefit claim is submitted more than two years after the due date, it must include an additional explanation showing that the entire delay was unintentional.

Likewise, if the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 is not submitted within the required time period, a petition for an unintentionally delayed claim may be filed. The petition must be accompanied by: (A) the reference required by 35 U.S.C. 119(e) and 37 CFR 1.78 to the prior provisional application (unless previously submitted); (B) a petition fee under 37 CFR 1.17(m); and (C) a statement that the entire delay between the date the benefit claim was due under 37 CFR 1.78 and the date the claim was filed was unintentional. The Director may require additional information where there is a question whether the delay was unintentional. In particular, when the petition to accept a delayed benefit claim is submitted more than two years after the date the benefit claim was due, the petition will require additional explanation of the circumstances surrounding the delay that establishes that the entire delay was unintentional. See 37 CFR 1.78(c).

Jump to MPEP Source · 37 CFR 1.78Correcting Benefit ClaimsBenefit Claim in SpecificationContinuation Benefit Claims
StatutoryRequiredAlways
[mpep-211-04-b815314ae078810f11dacfa6]
Petition Required for Unclaimed Benefit in Abandoned International Application
Note:
A petition under 37 CFR 1.78 and fee are required to add a benefit claim under 35 U.S.C. 120 and 365(c) even if the international application did not enter the national stage.

A petition under 37 CFR 1.78 for accepting an unintentionally delayed benefit claim and the petition fee under 37 CFR 1.17(m) are required to add a benefit claim under 35 U.S.C. 120 and 365(c) in an abandoned international application designating the United States, even when the international application did not enter the national stage under 35 U.S.C. 371. For example, when filing a “bypass” continuation application under 35 U.S.C. 111(a) that claims the benefit of an international application designating the United States that could have but did not claim the benefit of an earlier U.S. application, and the benefit claim is to be added to the international application, a petition under 37 CFR 1.78 must be filed in the international application.

Jump to MPEP Source · 37 CFR 1.78Correcting Benefit ClaimsBenefit Claim in SpecificationContinuation Benefit Claims
Topic

Petition to Revive (37 CFR 1.137)

1 rules
StatutoryRequiredAlways
[mpep-211-04-54e183f65b605a246155836b]
Petition to Add Unintentionally Delayed Provisional Benefit Claim
Note:
Allows filing a petition under 37 CFR 1.78 to add or correct an unintentionally delayed benefit claim from a provisional application in an abandoned nonprovisional application filed on or after November 29, 2000.

Effective December 18, 2013, 35 U.S.C. 119(e)(1) no longer requires that the amendment containing the specific reference to the earlier filed provisional application be submitted during the pendency of the application. Therefore, a petition to revive is no longer required to add or correct a benefit claim under 35 U.S.C. 119(e) in an abandoned nonprovisional application filed on or after November 29, 2000. Applicant may simply file a petition under 37 CFR 1.78 to accept an unintentionally delayed claim for the benefit of a prior-filed provisional application in the abandoned nonprovisional application. It may be necessary to correct the benefit in the abandoned nonprovisional application so that the benefit claims in a later filed nonprovisional application claiming benefit of the abandoned nonprovisional application are proper.

Jump to MPEP Source · 37 CFR 1.78Petition to Revive (37 CFR 1.137)Common Petition TypesDirector Authority and Petitions (MPEP 1000)
Topic

Petition Procedures (MPEP 1002)

1 rules
StatutoryPermittedAlways
[mpep-211-04-f79c3d561ac0484abdf306b2]
Petition to Accept Unintentionally Delayed Provisional Benefit Claim
Note:
Applicant may file a petition under 37 CFR 1.78 to accept an unintentionally delayed claim for the benefit of a prior-filed provisional application in an abandoned nonprovisional application, ensuring proper benefit claims in subsequent applications.

Effective December 18, 2013, 35 U.S.C. 119(e)(1) no longer requires that the amendment containing the specific reference to the earlier filed provisional application be submitted during the pendency of the application. Therefore, a petition to revive is no longer required to add or correct a benefit claim under 35 U.S.C. 119(e) in an abandoned nonprovisional application filed on or after November 29, 2000. Applicant may simply file a petition under 37 CFR 1.78 to accept an unintentionally delayed claim for the benefit of a prior-filed provisional application in the abandoned nonprovisional application. It may be necessary to correct the benefit in the abandoned nonprovisional application so that the benefit claims in a later filed nonprovisional application claiming benefit of the abandoned nonprovisional application are proper.

Jump to MPEP Source · 37 CFR 1.78Petition Procedures (MPEP 1002)Director Authority and Petitions (MPEP 1000)Petition to Revive (37 CFR 1.137)
Topic

Petition for Delayed Benefit Claim

1 rules
StatutoryRecommendedAlways
[mpep-211-04-8d8428a30ef79b48dcb37817]
Petitions for Unintentionally Delayed Benefit Claims Must Be Forwarded to Office of Petitions
Note:
Petitions for unintentionally delayed benefit claims must be submitted to the Office of Petitions as per MPEP § 1002.02(b).

Petitions for an unintentionally delayed benefit claim should be forwarded to the Office of Petitions. See MPEP § 1002.02(b).

Jump to MPEP SourcePetition for Delayed Benefit ClaimUnintentional Delay StandardDelayed Benefit/Priority Claims
Topic

Article 19 Amendment Scope

1 rules
StatutoryRequiredAlways
[mpep-211-04-e128283a331fac478566b538]
Petition for Nonprovisional Application Benefit Claim
Note:
A petition under 37 CFR 1.78(c) or (e) may be filed in the earliest nonprovisional application claiming benefit to an international application and will be treated as filed in the international application.

If a petition under 37 CFR 1.78(c) or (e) is required in an international application that was not filed with the United States Receiving Office and is not a nonprovisional application, then the petition may be filed in the earliest nonprovisional application that claims benefit under 35 U.S.C. 120, 121, 365(c), or 386(c) to the international application and will be treated as having been filed in the international application. See 37 CFR 1.78(i).

Jump to MPEP Source · 37 CFR 1.78(c)Article 19 Amendment ScopeNationals and ResidentsReceiving Office (RO/US)

Citations

Primary topicCitation
Correcting Benefit Claims35 U.S.C. § 111(a)
Correcting Benefit Claims
Petition Procedures (MPEP 1002)
Petition to Revive (37 CFR 1.137)
35 U.S.C. § 119(e)
Petition Procedures (MPEP 1002)
Petition to Revive (37 CFR 1.137)
35 U.S.C. § 119(e)(1)
Article 19 Amendment Scope
Correcting Benefit Claims
35 U.S.C. § 120
Correcting Benefit Claims35 U.S.C. § 371
Correcting Benefit Claims37 CFR § 1.17(m)
Correcting Benefit Claims
Petition Procedures (MPEP 1002)
Petition to Revive (37 CFR 1.137)
37 CFR § 1.78
Article 19 Amendment Scope
Correcting Benefit Claims
37 CFR § 1.78(c)
Correcting Benefit Claims37 CFR § 1.78(c)(3)
Correcting Benefit Claims37 CFR § 1.78(d)(3)
Correcting Benefit Claims37 CFR § 1.78(e)
Article 19 Amendment Scope37 CFR § 1.78(i)
Petition for Delayed Benefit ClaimMPEP § 1002.02(b)
Correcting Benefit ClaimsMPEP § 1481.03
Correcting Benefit ClaimsMPEP § 711.03(c)

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31