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:
Mar. 21, 1989
Filed:
Nov. 27, 1987
Applicant:
Inventor:
Harold W Young, Jr, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
558356 ;
Abstract
Fumaronitrile or maleonitrile in a nitrile solvent in the presence of a base isomerizes to its geometric isomer. This process is particularly useful for the preparation of maleonitrile by the isomerization of fumaronitrile in acetonitrile in the presence of solid potassium hydroxide. The unreacted fumaronitrile and acetonitrile may be recycled.
Young, Jr, Harold. (1989). Isomerization of fumaronitrile and maleonitrile (U.S. Patent No. 4814481). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4814481
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile