[Code of Federal Regulations]
[Title 37, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 37CFR1.437]

[Page 120]
 
              TITLE 37--PATENTS, TRADEMARKS, AND COPYRIGHTS
 
                         DEPARTMENT OF COMMERCE
 
PART 1--RULES OF PRACTICE IN PATENT CASES--Table of Contents
 
             Subpart C--International Processing Provisions
 
Sec. 1.437  The drawings.

    (a) Subject to paragraph (b) of this section, when drawings are 
necessary for the understanding of the invention, or are mentioned in 
the description, they must be part of an international application as 
originally filed in the United States Receiving Office in order to 
maintain the international filing date during the national stage (PCT 
Art. 7).
    (b) Drawings missing from the application upon filing will be 
accepted if such drawings are received within 30 days of the date of 
first receipt of the incomplete papers. If the missing drawings are 
received within the 30-day period, the international filing date shall 
be the date on which such drawings are received. If such drawings are 
not timely received, all references to drawings in the international 
application shall be considered non-existent (PCT Art. 14(2), 
Administrative Instruction 310).
    (c) The physical requirements for drawings are set forth in PCT Rule 
11 and shall be adhered to.