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:
Jun. 26, 1990
Filed:
Oct. 19, 1988
Applicant:
Inventors:
Kurt Burdeska, Basel, CH;
Otto R Gottel, Marly, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548260 ;
Abstract
There is disclosed a process for the preparation of 3-[2'H-benzotriazol-(2')-yl]-4-hydroxybenzenesulfonic acids and salts thereof of formula ##STR1## wherein R is hydrogen or chlorine,
Burdeska, Kurt. (1990). Process for the preparation of (U.S. Patent No. 4937349). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4937349
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile