MPEP Section 608.04(a), Matter Not in Original Specification, Claims, or Drawings

Executive summary:

This document contains Section 608.04(a) ("Matter Not in Original Specification, Claims, or Drawings") 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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608.04(a) Matter Not in Original Specification, Claims, or Drawings

Matter not in the original specification, claims, or drawings is usually new matter. Depending on circumstances such as the adequacy of the original disclosure, the addition of inherent characteristics such as chemical or physical properties, a new structural formula or a new use may be new matter. See Ex parte Vander Wal, 109 USPQ 119, 1956 C.D. 11, 705 O.G. 5 (Bd. App. 1955) (physical properties), Ex parte Fox, 128 USPQ 157, 1960 C.D. 28, 761 O.G. 906 (Bd. App. 1957) (new formula) and Ex parte Ayers, 108 USPQ 444 (Bd. App. 1955) (new use). For rejection of claim involving new matter, see MPEP § 706.03(o).

For completeness of disclosure, see MPEP § 608.01(p). For trademarks and tradenames, see MPEP § 608.01(v).