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:
Jan. 01, 1985
Filed:
Jan. 27, 1983
Applicant:
Inventors:
Assignee:
Indian Explosives Ltd., Calcutta, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 24 ; 2604 / ; 560 25 ; 564393 ;
Abstract
Isocyanates, or derivatives thereof, are produced from nitrobenzene or 2,4-dinitrotoluene by reaction with carbon monoxide in the presence of an iron, ruthenium, rhodium, or platinum carbonyl as catalyst.
Bhaduri, Sumit. (1985). Catalytic process for the direct carbonylation of organic nitro compounds (U.S. Patent No. 4491670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4491670
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile