MPEP § 2128.02 — Date Publication Is Available as a Reference (Annotated Rules)

§2128.02 Date Publication Is Available as a Reference

USPTO MPEP version: BlueIron's Update: 2026-01-10

This page consolidates and annotates all enforceable requirements under MPEP § 2128.02, 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.

Date Publication Is Available as a Reference

This section addresses Date Publication Is Available as a Reference. Contains: 1 permission and 3 other statements.

Key Rules

Topic

Application Publication

3 rules
MPEP GuidancePermittedAlways
[mpep-2128-02-129d5a6898aca69fcb0d296a]
Routine Business Practices Can Establish Publication Date
Note:
Evidence of routine business practices can be used to determine when a publication became accessible to the public, even without specific evidence of actual availability.

Evidence showing routine business practices can be used to establish the date on which a publication became accessible to the public. Specific evidence showing when the specific document actually became available is not always necessary. Constant v. Advanced Micro-Devices, Inc., 848 F.2d 1560, 7 USPQ2d 1057 (Fed. Cir.), cert. denied, 988 U.S. 892 (1988) (Court held that evidence submitted by Intel regarding undated specification sheets showing how the company usually treated such specification sheets was enough to show that the sheets were accessible by the public before the critical date.); In re Hall, 781 F.2d 897, 228 USPQ 453 (Fed. Cir. 1986) (Librarian’s affidavit establishing normal time frame and practice for indexing, cataloging and shelving doctoral theses established that the thesis in question would have been accessible by the public before the critical date.); In re Lister, 583 F.3d 1307, 1317, 92 USPQ2d 1225, 1231-32 (Fed. Cir. 2009) (“The government urges us that it is appropriate in this case to presume that the manuscript information was added to the Westlaw and Dialog databases prior to the critical date because the critical date was more than a year after the certificate of registration was granted. However, absent any evidence pertaining to the general practices of the Copyright Office, Westlaw, and Dialog, or the typical time that elapses between copyright registration, inclusion in the Copyright Office’s automated catalog, and subsequent incorporation into one of the commercial databases, any presumption along those lines would be pure speculation.").

Jump to MPEP SourceApplication PublicationPatent Application Content
MPEP GuidanceInformativeAlways
[mpep-2128-02-b685818830a243de51db9202]
Requirement for Establishing Publicly Available Date
Note:
Evidence of routine business practices can be used to establish when a publication became publicly available, even if specific dates are not provided.

Evidence showing routine business practices can be used to establish the date on which a publication became accessible to the public. Specific evidence showing when the specific document actually became available is not always necessary. Constant v. Advanced Micro-Devices, Inc., 848 F.2d 1560, 7 USPQ2d 1057 (Fed. Cir.), cert. denied, 988 U.S. 892 (1988) (Court held that evidence submitted by Intel regarding undated specification sheets showing how the company usually treated such specification sheets was enough to show that the sheets were accessible by the public before the critical date.); In re Hall, 781 F.2d 897, 228 USPQ 453 (Fed. Cir. 1986) (Librarian’s affidavit establishing normal time frame and practice for indexing, cataloging and shelving doctoral theses established that the thesis in question would have been accessible by the public before the critical date.); In re Lister, 583 F.3d 1307, 1317, 92 USPQ2d 1225, 1231-32 (Fed. Cir. 2009) (“The government urges us that it is appropriate in this case to presume that the manuscript information was added to the Westlaw and Dialog databases prior to the critical date because the critical date was more than a year after the certificate of registration was granted. However, absent any evidence pertaining to the general practices of the Copyright Office, Westlaw, and Dialog, or the typical time that elapses between copyright registration, inclusion in the Copyright Office’s automated catalog, and subsequent incorporation into one of the commercial databases, any presumption along those lines would be pure speculation.").

Jump to MPEP SourceApplication PublicationPatent Application Content
MPEP GuidanceInformativeAlways
[mpep-2128-02-8d6384637e7ecd14c5116c55]
Routine Business Practices Establish Publication Availability
Note:
Use routine business practices to establish when a publication became accessible to the public, without specific evidence of actual availability.

Evidence showing routine business practices can be used to establish the date on which a publication became accessible to the public. Specific evidence showing when the specific document actually became available is not always necessary. Constant v. Advanced Micro-Devices, Inc., 848 F.2d 1560, 7 USPQ2d 1057 (Fed. Cir.), cert. denied, 988 U.S. 892 (1988) (Court held that evidence submitted by Intel regarding undated specification sheets showing how the company usually treated such specification sheets was enough to show that the sheets were accessible by the public before the critical date.); In re Hall, 781 F.2d 897, 228 USPQ 453 (Fed. Cir. 1986) (Librarian’s affidavit establishing normal time frame and practice for indexing, cataloging and shelving doctoral theses established that the thesis in question would have been accessible by the public before the critical date.); In re Lister, 583 F.3d 1307, 1317, 92 USPQ2d 1225, 1231-32 (Fed. Cir. 2009) (“The government urges us that it is appropriate in this case to presume that the manuscript information was added to the Westlaw and Dialog databases prior to the critical date because the critical date was more than a year after the certificate of registration was granted. However, absent any evidence pertaining to the general practices of the Copyright Office, Westlaw, and Dialog, or the typical time that elapses between copyright registration, inclusion in the Copyright Office’s automated catalog, and subsequent incorporation into one of the commercial databases, any presumption along those lines would be pure speculation.").

Jump to MPEP SourceApplication PublicationPatent Application Content
Topic

Patent Application Content

1 rules
MPEP GuidanceInformativeAlways
[mpep-2128-02-46fc0c210ef82d8fcfa1d6b1]
Routine Practices Can Establish Publication Date
Note:
Evidence of routine business practices can establish when a document was publicly available, not requiring specific dates.

Evidence showing routine business practices can be used to establish the date on which a publication became accessible to the public. Specific evidence showing when the specific document actually became available is not always necessary. Constant v. Advanced Micro-Devices, Inc., 848 F.2d 1560, 7 USPQ2d 1057 (Fed. Cir.), cert. denied, 988 U.S. 892 (1988) (Court held that evidence submitted by Intel regarding undated specification sheets showing how the company usually treated such specification sheets was enough to show that the sheets were accessible by the public before the critical date.); In re Hall, 781 F.2d 897, 228 USPQ 453 (Fed. Cir. 1986) (Librarian’s affidavit establishing normal time frame and practice for indexing, cataloging and shelving doctoral theses established that the thesis in question would have been accessible by the public before the critical date.); In re Lister, 583 F.3d 1307, 1317, 92 USPQ2d 1225, 1231-32 (Fed. Cir. 2009) (“The government urges us that it is appropriate in this case to presume that the manuscript information was added to the Westlaw and Dialog databases prior to the critical date because the critical date was more than a year after the certificate of registration was granted. However, absent any evidence pertaining to the general practices of the Copyright Office, Westlaw, and Dialog, or the typical time that elapses between copyright registration, inclusion in the Copyright Office’s automated catalog, and subsequent incorporation into one of the commercial databases, any presumption along those lines would be pure speculation.").

Jump to MPEP SourcePatent Application ContentApplication Publication

Citations

Primary topicCitation
Application Publication
Patent Application Content
In re Hall, 781 F.2d 897, 228 USPQ 453 (Fed. Cir. 1986)
In re Schlittler, 234 F.2d 882, 110 USPQ 304 (CCPA 1956)

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: 2026-01-10