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. 16, 1992
Filed:
Dec. 19, 1990
Applicant:
Inventor:
Henry L Strong, Somerset, NJ (US);
Assignee:
American Cyanamid Company, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
546170 ; 546321 ; 546168 ; 546171 ; 546176 ;
Abstract
There is provided a process for the preparation of a substituted or unsubstituted 2,3-pyridine or quinolinedicarboxylic acid by hydrolysis of a substituted or unsubstituted 2,3-pyridine or quinolinedicarboxylic acid diester with an acid having an ionization constant pK.sub.a of less than 3.0 followed by isolation of the product as the free acid or an acid salt.
Strong, Henry. (1992). Method for the preparation of substituted and unsubstituted 2,3-pyridine (U.S. Patent No. 5122608). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5122608
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile