MPEP Section 502.04, Duplicate Copies of Correspondence

Executive summary:

This document contains Section 502.04 ("Duplicate Copies of Correspondence") of the Manual of Patent Examining Procedure (the "M.P.E.P."), Eighth Edition, Eighth Revision (July 2010). This page was last updated in January 2011. You may return to the section index to find a particular section. Alternatively, you may search the MPEP using the search box that appears on the left side of every page of BitLaw--you may restrict your search to the MPEP on the search results page.

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502.04 Duplicate Copies of Correspondence [R-2]

37 CFR 1.4 Nature of correspondence and signature requirements.

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(b) Since each file must be complete in itself, a separate copy of every paper to be filed in a patent, patent file, or other proceeding must be furnished for each file to which the paper pertains, even though the contents of the papers filed in two or more files may be identical. The filing of duplicate copies of correspondence in the file of an application, patent, or other proceeding should be avoided, except in situations in which the Office requires the filing of duplicate copies. The Office may dispose of duplicate copies of correspondence in the file of an application, patent, or other proceeding.<

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When the Office does not require duplicate copies of a paper, the filing of multiple copies may cause a delay in processing by the Office. Accordingly, the Office may discard duplicate copies of correspondence filed in an application or patent file.