Index to the U.S. patent classification.

Format:

Government document

Journal/Periodical

Contributor:

United States. Patent and Trademark Office.

United States. Patent and Trademark Office. Office of Classification Support.

Language:

English

Subjects (All):

United States. Patent and Trademark Office. Office of Documentation Planning and Support. Manual of classification--Indexes--Periodicals.

United States.

Patents--United States--Classification--Indexes--Periodicals.

Patents.

Patents--Classification.

Genre:

Indexes.

Periodicals.

Physical Description:

1 online resource

Annual

Began with Dec. 1977.

Other Title:

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-

Index, U.S. Patent classification system <Dec. 1999->

Place of Publication:

[Washington, D.C.] : U.S. Dept. of Commerce, Patent and Trademark Office : [Supt. of Docs., U.S. G.P.O., distributor

Notes:

Volumes 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.

1980.

Dec. 1999.

Other Format:

Print version: Index to the U.S. patent classification.