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:
May. 30, 1978
Filed:
May. 09, 1977
Applicant:
Inventors:
Robert Foster, Macclesfield, EN;
Roger Edwin Preston, Macclesfield, EN;
Graham Ernest Robinson, Macclesfield, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 2602 / ;
Abstract
The disclosure relates to novel protected ketone derivatives, for example dimethyl 3-(3-chlorophenoxy)-2-semicarbazonopropylphosphonate, for use as intermediates in the synthesis of known prostaglandin analogues, and to a process for their manufacture.
Foster, Robert. (1978). Hydrazine derivatives of pyridyl-ketones (U.S. Patent No. 4092323). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4092323
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile