The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 1978
Filed:
Oct. 17, 1977
Applicant:
Inventors:
Gary Fred Brooks, San Jose, CA (US);
Walter Crooks, Los Gatos, CA (US);
William Joseph Weiche, Los Gatos, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428337 ; 428408 ; 428411 ; 428412 ; 428484 ; 428538 ; 400118 ;
Abstract
The present invention is concerned with a ribbon for non-impact printing. The ribbon comprises a transfer coating and a substrate which is a polycarbonate resin containing from about 15% to about 40% by weight of electrically conductive carbon black.