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:
Feb. 22, 1977
Filed:
Nov. 03, 1975
John Warkentin, Burlington, CA;
Kottieth Ramakrishnan, Hamilton, CA;
Rup C Jain, Montreal, CA;
Frank W Wandelmaier, Montreal, CA;
Canadian Patents and Development Limited, Ottawa, CA;
Abstract
Benzylidenehydrazono-oxadiazoline compounds have been prepared of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are both lower alkyl or form with the heterocyclic ring carbon atom an alicyclic ring; and R.sub.3 when present is selected from halogen, lower alkyl and lower alkoxy. The preparation involves condensing a benzaldehyde with carbodihydrazide and further condensing with a ketone (or vice versa) to form the corresponding crossed carbodihydrazone, and oxidizing and cyclizing to form the oxadiazoline derivatives. These derivatives have analgesic and/or anti-inflammatory activity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile