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. 14, 1989
Filed:
Jul. 27, 1987
Applicant:
Inventors:
Michael S Howarth, Littleborough, GB;
David M Tomkinson, Rochdale, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546290 ; 546345 ; 546312 ; 546307 ; 546296 ; 546318 ; 546321 ; 546326 ; 570141 ;
Abstract
A process for the preparation of a fluoroaromatic or fluoroheterocyclic compound, which comprises diazotizing the corresponding amino-aromatic or amino-heterocyclic compound in hydrogen fluoride and decomposing the diazonium salt in the diazotization mixture so formed, characterized in that decomposition is carried out at super atmospheric pressure.
Quick Actions:
Howarth, Michael. (1989). Process for preparation of fluoroaromatic or fluoroheterocyclic compounds (U.S. Patent No. 4812572). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4812572
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile