Index of Patents Issued from the United States Patent and Trademark OfficeIndex of Patents Issued from the United States Patent and Trademark Office



United States. Patent and Trademark Office. LIBRARIES RECEIVING CURRENT ISSUES OF U.S. PATENTS Reference ... Many PTDLs have on file patents issued since 1790 , trademarks published since 1872 , and select collections of foreign patents ...

Author: United States. Patent and Trademark Office

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ISBN: UOM:39015064351466

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View: 138

Index of Patents 1997 Issued from the United States Patent and Trademark OfficeIndex of Patents 1997 Issued from the United States Patent and Trademark Office



Indexes the subject of invention of each patent issued during 1997. Arranged by class and subclass numbers. Covers design patents, plant patents, and statutory invention registrations. Also lists patent and trademark depository libraries.

Author:

Publisher: Patent & Trademark Office

ISBN: 0160498015

Category:

Page: 792

View: 245

Indexes the subject of invention of each patent issued during 1997. Arranged by class and subclass numbers. Covers design patents, plant patents, and statutory invention registrations. Also lists patent and trademark depository libraries.