Expired Canadian patentCanada
Preparation of alkylacrylamidoglycolates and their alkyl ethers
CA 1209583 A · Owner: American Cyanamid Company · Inventors: Schirmann, Peter J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Reaction of an acrylamide with an alkyl glyoxylate or an alkyl glyoxylate hemiacetal provides an alkyl acrylamidoglycolate which can readily be alkylated to provide the alkyl ether thereof.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 10, 1983
GrantedAugust 12, 1986
Term endedAugust 12, 2003
Patent numberCA 1209583 A
Classification (IPC)B01J31/04
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.