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    Patents < Classification << Main Menu Site data is current as of August 2003.
    Class Numbers & Titles   | Class Numbers Only   | USPC Index   | International   | HELP   | Patents Home
 
 
A. Access Classification Info by Class/Subclass
  1. Enter a USPC Classification...
   
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Class (required)/Subclass (optional)
e.g., 704/1 or 482/1
 
  2. Select what you want...
  Class Schedule (HTML)
  Printable Version of Class Schedule (PDF)
  Class Definition (HTML)
  Printable Version of Class Definition (PDF)
  US-to-IPC Concordance
  US-to-Locarno Concordance
  3.  
   
  Information on E-Subclasses
 
B. Search US Manual of Classification HELP
 

You can use FirstGov query below to search the Patent Classification web site.. You can also restrict your search to the Index to the USPC by choosing the Index to Classification option from the dropdown menu.

 

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