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. 20, 1993
Filed:
Sep. 04, 1990
Applicant:
Inventor:
Ponnampalam Mathiaparanam, Appleton, WI (US);
Assignee:
Appleton Papers Inc., Appleton, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
548427 ; 548450 ; 548455 ; 544 60 ; 544 61 ; 544 62 ; 544142 ; 544143 ; 544144 ; 546200 ; 546201 ;
Abstract
Novel bis-(indolyl)ethylenes, process for their production and record systems utilizing such bis-(indolyl)ethylene chromogens are described.
Quick Actions:
Mathiaparanam, Ponnampalam. (1993). Bis-(indolyl)ethylenes: process for their preparation (U.S. Patent No. 5229522). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5229522
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile