How can provisional applications be used as prior art under pre-AIA 35 U.S.C. 102(e)?

Provisional applications can be used as prior art under pre-AIA 35 U.S.C. 102(e), but there are specific requirements. The MPEP states:

“Where a U.S. patent claims benefit to a provisional application, at least one claim of the patent must be supported by the disclosure of the relied upon provisional application in compliance with pre-AIA 35 U.S.C. 112, first paragraph, in order for the patent to be usable as prior art under pre-AIA 35 U.S.C. 102(e) as of the relied upon provisional application’s filing date.”

This means that for a provisional application’s filing date to be used as the effective date for prior art purposes:

  • The later-filed patent must claim benefit to the provisional application
  • At least one claim in the patent must be fully supported by the provisional application’s disclosure
  • The support must meet the requirements of pre-AIA 35 U.S.C. 112, first paragraph

If these conditions are met, the provisional application’s filing date can be used as the effective date for prior art purposes under pre-AIA 35 U.S.C. 102(e).

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Topics: MPEP 2100 - Patentability, MPEP 2136.02 - Content Of The Prior Art Available Against The Claims, Patent Law, Patent Procedure
Tags: effective filing date, Pre-Aia 35 U.S.C. 102(E), provisional application