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:
Feb. 24, 1976
Filed:
Jul. 05, 1973
Applicant:
Inventors:
Bruce W Brockett, Dayton, OH (US);
Ralph L Marzocco, Dayton, OH (US);
Fredrick D Weaver, New Lebanon, OH (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 19 ; 106 21 ; 106 22 ; 260 38 ; 260 4221 ;
Abstract
A colorless marking liquid comprising a vehicle in which is dissolved at least two colorless reactants each exhibiting its own distinctive color on reaction with an acidic record material sensitizing substance, the liquid yielding an apparent blue hue on record material sensitized with an acidic material. The resulting blue print provides excellent reproduction capabilities when copied by xerographic processes.
Brockett, Bruce. (1976). Record material and marking liquid (U.S. Patent No. 3940275). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3940275
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile