MPEP 901.01 – Canceled Matter

Chapter 900 – Prior Art, Classification, and Search

Chapter 901.01 – Canceled Matter in U.S. Patent Files

In U.S. Patents and U.S. application publications (AKA PGPubs), canceled matter in the application file is not a proper reference as of the filing date under pre-AIA 35 U.S.C. 102(e).

In U.S. Patents and U.S. application publications (AKA PGPubs), canceled matter in the file wrapper may be used as prior art as of the patent or publication date because it, the canceled matter, constitutes prior public knowledge/prior public availability under pre-AIA 35 U.S.C. 102(a) or 35 U.S.C. 102(a)(1).

 

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