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:
Oct. 26, 1982
Filed:
Jul. 24, 1980
Applicant:
Inventor:
Peter Burri, Reinach, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ; B41M / ;
U.S. Cl.
CPC ...
282 275 ; 106 21 ; 260315 ; 427151 ; 4283204 ; 4283206 ; 4283208 ; 428537 ; 428913 ; 428914 ;
Abstract
The present invention relates to a pressure-sensitive or heat-sensitive recording material which contains as color former in its color-forming system at least one carbazolylmethane compound of the general formula ##STR1## wherein each of R.sub.1 and R.sub.2 independently represents hydrogen, alkyl of not more 12 carbon atoms which is unsubstituted or substituted or alkenyl of not more than 12 carbon atoms, acyl of 1 to 12 carbon atoms, phenyl, benzyl, substituted phenyl or substituted benzyl,
Burri, Peter. (1982). Pressure-sensitive or heat-sensitive recording material (U.S. Patent No. 4355823). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4355823
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile