MPEP § 608.03(a) — Handling of Models, Exhibits, and Specimens (Annotated Rules)

§608.03(a) Handling of Models, Exhibits, and Specimens

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

This page consolidates and annotates all enforceable requirements under MPEP § 608.03(a), 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.

Handling of Models, Exhibits, and Specimens

This section addresses Handling of Models, Exhibits, and Specimens. Primary authority: 37 CFR 1.94, 37 CFR 1.91, and 37 CFR 1.133. Contains: 1 requirement, 1 guidance statement, 1 permission, and 1 other statement.

Key Rules

Topic

Paper and Format Requirements

2 rules
StatutoryInformativeAlways
[mpep-608-03-a-4962056268796cf8898e6a68]
Retaining Non-Conforming Models, Exhibits, or Specimens
Note:
Applicants must retain non-conforming models, exhibits, or specimens for the patent's life unless they substantially conform to requirements or are perishable.

For models, exhibits, or specimens that are returned, applicant is responsible for retaining the actual model, exhibit, or specimen for the enforceable life of any patent resulting from the application except where: (A) the model or exhibit substantially conforms to the requirements of 37 CFR 1.52 or 1.84; (B) the model or exhibit has been described by photographs that substantially conform to 37 CFR 1.84; or (C) the model, exhibit, or specimen is perishable. Applicant may be called upon to resubmit such returned model, exhibit, or specimen under appropriate circumstances, such as where a continuing application is filed.

Jump to MPEP Source · 37 CFR 1.52Paper and Format RequirementsGeneral Filing and Format Requirements
StatutoryPermittedAlways
[mpep-608-03-a-526b172da5f36d7e01f2167b]
Resubmitting Returned Models When Filing Continuations
Note:
Applicant must resubmit returned models under appropriate circumstances, such as when filing a continuation application.

For models, exhibits, or specimens that are returned, applicant is responsible for retaining the actual model, exhibit, or specimen for the enforceable life of any patent resulting from the application except where: (A) the model or exhibit substantially conforms to the requirements of 37 CFR 1.52 or 1.84; (B) the model or exhibit has been described by photographs that substantially conform to 37 CFR 1.84; or (C) the model, exhibit, or specimen is perishable. Applicant may be called upon to resubmit such returned model, exhibit, or specimen under appropriate circumstances, such as where a continuing application is filed.

Jump to MPEP Source · 37 CFR 1.52Paper and Format RequirementsGeneral Filing and Format Requirements
Topic

Access to Patent Application Files (MPEP 101-106)

2 rules
MPEP GuidanceRecommendedAlways
[mpep-608-03-a-2e654e0304864fe4cd7a52ed]
Models and Exhibits Must Be Taken to Assigned TC
Note:
All models and exhibits received in the U.S. Patent and Trademark Office must be submitted to the Technology Center assigned to the related application for examination.

All models and exhibits received in the U.S. Patent and Trademark Office should be taken to the Technology Center (TC) assigned the related application for examination. The receipt of all models and exhibits which are to be entered into the application file record must be properly recorded on an artifact sheet.

Jump to MPEP SourceAccess to Patent Application Files (MPEP 101-106)
MPEP GuidanceRequiredAlways
[mpep-608-03-a-eda5a4fe2540a6dc3e276b18]
Models and Exhibits Must Be Recorded on Artifact Sheet
Note:
All models and exhibits received for a patent application must be properly recorded on an artifact sheet before being entered into the file record.

All models and exhibits received in the U.S. Patent and Trademark Office should be taken to the Technology Center (TC) assigned the related application for examination. The receipt of all models and exhibits which are to be entered into the application file record must be properly recorded on an artifact sheet.

Jump to MPEP SourceAccess to Patent Application Files (MPEP 101-106)

Examiner Form Paragraphs

Examiner form paragraphs are standard language that you might see in an Office Action or communication from the USPTO. Examiners have latitude to change the form paragraphs, but you will often see this exact language.

¶ 6.48 ¶ 6.48 Model, Exhibit, or Specimen – Applicant Must Make Arrangements for Return

The [1] is no longer necessary for the conduct of business before the Office. Applicant must arrange for the return of the model, exhibit or specimen at the applicant’s expense in accordance with 37 CFR 1.94(a) .

Applicant is given TWO MONTHS from the mailing date of this letter to make arrangements for return of the above-identified model, exhibit, or specimen to avoid its disposal in accordance with 37 CFR 1.94(c) . Extensions of time are available under 37 CFR 1.136 , except in the case of perishables.

Applicant is responsible for retaining the actual model, exhibit, or specimen for the enforceable life of any patent resulting from the application unless one of the exceptions set forth in 37 CFR 1.94(b) applies.

Citations

Primary topicCitation
37 CFR § 1.133
37 CFR § 1.136
37 CFR § 1.166
Paper and Format Requirements37 CFR § 1.52
Paper and Format Requirements37 CFR § 1.84
37 CFR § 1.91
37 CFR § 1.94
MPEP § 1607
MPEP § 713.08
Form Paragraph § 6.48

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