Manual of Classification, Basic Manual, December 1996. Revision No. 1, June 1997(Including Changes Resulting from All Classification Orders through June 30, 1997)

摘要

The U.S. Patent Classification System (USPCS) provides for the storage andretrieval of patent documents which a Patent Examiner needs to review when examining patent applications. A fundamental principle of the USPCS is that each class, or part thereof, is created by first analyzing the claimed disclosures of the U.S. patents and then creating various divisions and subdivisions on the basis of that analysis. All similar subject matter is gathered together in large groupings to create classes. These classes are the subdivided into smaller searchable units called subclasses. The sequence or pattern arrangement of the subclasses within each class is called the class schedule. This revision consists of replacement pages for various classes which resulted from the Classification Orders 1629-1645 (except 1640).