Index to the U.S. patent classification.

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Bibliographic Details
Imprint:	[Washington, D.C.] : U.S. Dept. of Commerce, Patent and Trademark Office : [Supt. of Docs., U.S. G.P.O., distributor
Description:	volumes ; 28 cm
Language:	English
Subject:	United States. -- Patent and Trademark Office. -- Office of Documentation Planning and Support. -- Manual of classification -- Indexes -- Periodicals. Patents -- United States -- Classification -- Indexes -- Periodicals.
Format:	E-Resource U.S. Federal Government Document Journal
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/6501393
Related Items:	Continues: Index to classification Other relationship: Manual of classification Companion to: Manual of classification.

Hidden Bibliographic Details
Varying Form of Title:	Index, U.S. Patent classification system Title varies: Index to the U.S. patent classification system <1991-> Index to the United States patent classification Index to the US patent classification Index to classification Dec. 1977-
Other authors / contributors:	United States. Patent and Trademark Office. United States. Patent and Trademark Office. Office of Classification Support.
Frequency:	Annual
ISSN:	0161-9470
Date / volume:	Began with Dec. 1977.
Notes:	Description based on: 1980. Latest issue consulted: Dec. 1999. Available online via Internet from the USPTO website. Address as of 5/02/06: http://www.uspto.gov/go/classification/uspcindex/indextouspc.htm; current access is available via PURL. Vols. for <1993-> issued by: U.S. Dept. of Commerce, U.S. Patent and Trademark Office, Assistant Secretary and Commissioner of Patents and Trademarks, Office of Classification Support. Companion to: Manual of classification.
Other form:	Index to the United States Patent Classification (USPC) system
GPO item no.:	0257
Govt.docs classification:	C 21.12/2:

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