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. 20, 1979
Filed:
Nov. 09, 1977
Applicant:
Inventors:
Andrew D Batcho, North Caldwell, NJ (US);
Urs O Hengartner, Roseland, NJ (US);
Willy Leimgruber, Upper Montclair, NJ (US);
John W Scott, Upper Montclair, NJ (US);
Donald Valentine, Jr, Highland Park, NJ (US);
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ; 2603 / ; 2603 / ; 2603 / ; 26032646 ; 2605 / ; 260599 ; 426548 ;
Abstract
Lower alkyl esters of 2-formamido-3(4,5,6 or 7-methyl substituted-3-indolyl)-2-carbalkoxy propionic acid which are useful as intermediates for tryptophane sweetners.