Expired Canadian patentCanada
Imidazole compounds and textile treatment compositions containing them
CA 1333609 C · Owner: Hardy, Frederick Edward · Inventors: Konig, Axel; Demeyere, Hugo Jean Marie; Hardy, Frederick Edward
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel imidazole compounds are disclosed as well as, textile treatment compositions containing said imidazole compounds and a Bronstedt acid as dispersing aid.
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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 December 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 20, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 24, 1989
GrantedDecember 20, 1994
Term endedDecember 20, 2011
Patent numberCA 1333609 C
Classification (IPC)C07D233/61 +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.