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. 05, 1980
Filed:
Jun. 20, 1977
Applicant:
Inventor:
Goetz E Hardtmann, Morristown, NJ (US);
Assignee:
Sandoz, Inc., East Hanover, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424258 ; 546155 ;
Abstract
Disclosed are compounds which are 4-hydroxy-2-quinolinone-3-carboxylic acids and salts thereof, e.g., 1-allyl-6,7-dimethoxy-4-hydroxy-2-quinolinone-3-carboxylic acid, useful as anti-allergic agents, and prepared by hydrolysis of the corresponding carboxylic acid esters.
Hardtmann, Goetz. (1980). 4-hydroxy-2-quinolinone-3-carboxylic acids and salts thereof (U.S. Patent No. 4187309). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4187309
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile