Expired Canadian patentCanada
Compounds containing aziridine radicals, and their use for reducing shrinkage and felting of goods containing, or consisting of, protein fibers
CA 1048039 A · Owner: Basf Aktiengesellschaft · Inventors: Fikentscher, Rolf; Simenc, Toni; Thomas, Rainer
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New compounds containing aziridine radicals, and an improved process for preventing shrinkage and felting of goods containing or consisting of, protein fibers, by reaction with these new compounds.
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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 February 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 6, 1979
Term endedFebruary 6, 1996
Patent numberCA 1048039 A
Classification (IPC)C07D203/18 +2 more
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.