Expired Canadian patentCanada
Detergent composition comprising an amylase enzyme and a nonionic polysaccharide ether
CA 2211328 C · Owner: Guedira, Nour-Eddine · Inventors: Hall, Robin Gibson; Guedira, Nour-Eddine; Baillely, Gerard Marcel
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a detergent composition comprising an amylase enzyme in combination with a nonionic polysaccharide ether for improved stain removal performance.
Read the whole patent
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
- Filed February 6, 1996 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2018.
- 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 6, 1996
GrantedJuly 24, 2001
Term endedFebruary 6, 2016
Patent numberCA 2211328 C
Classification (IPC)C11D3/38 +1 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.