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:
Nov. 25, 1980
Filed:
Mar. 26, 1979
Applicant:
Inventor:
Shigeto Suzuki, San Francisco, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562567 ; 560170 ;
Abstract
3-Oxacaprolactam is prepared by a process which comprises: contacting an organic acid anhydride solution of a cyanoalkoxyalkanoate with hydrogen in the presence of a noble metal hydrogenation catalyst to prepare an amide-ester; and heating the amide-ester in excess water at a temperature above about 200.degree. C.
Suzuki, Shigeto. (1980). Preparation of 6-amino-3-oxahexanoic acid compounds (U.S. Patent No. 4236028). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4236028
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile