Expired Canadian patentCanada
Glycolipid surfactants and compositions containing them
CA 2086228 C · Owner: Khan-Lodhi, Abid N. · Inventors: Khan-Lodhi, Abid N.; Hung, Anthony; Humphreys, Robert W.
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 invention relates to detergent, cleansing or personal product compositions comprising a glycerogylycolipid surfactant having an ether linkage.
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 December 23, 1992 and granted September 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 1992
GrantedSeptember 22, 1998
Term endedDecember 23, 2012
Patent numberCA 2086228 C
Classification (IPC)C11D1/66 +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.