3. Classification Definitions

Read the classification definitions to verify that you have selected the proper classes and subclasses. The definitions include suggestions for searching related subclasses. There are no definitions for design patent classification numbers.

Availability:

DVD ROM: CASSIS Patents ASSIST (Tools)

Internet: Search Classification Definitions (www.uspto.gov/web/offices/ac/ido/oeip/taf/def/explan.htm)