Index to the U.S. patent classification [electronic resource]
- Other Title:
- Title varies: Index to the U.S. patent classification system 1990-
Index to the United States patent classification
Index to the US patent classification
Index to classification
- [Washington, District of Columbia] : U.S. Dept. of Commerce, Patent and Trademark Office, [1977-]
- [Getzville, New York] : William S. Hein and Company, [2017-]
- Intellectual property law collection
HeinOnline intellectual property law collection
- Government document
1 online resource
Coverage begins with December 1977
- Patents -- United States -- Classification -- Indexes -- Periodicals.
- Electronic books.
- Description based on PDF title page, viewed March 7, 2017
©2017 Cassidy Cataloguing Services, Inc
- United States. Patent and Trademark Office. issuing body
- Other format:
- Print version: Index to the U.S. patent classification
- Access Restriction:
- Restricted for use by site license.
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