Detergent compositions comprising glyceryl ethers
CA 2122602 A1 · Owner: The Procter & Gamble Company · Inventors: Hardy, Frederick Edward; Boutique, Jean-Pol
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A detergent composition comprises (a) one or more glyceryl ethers of a C12-C18 alkyl or alkenyl primary or secondary alcohol at least 50 mole percent of the glyceryl ether being diglyceryl ether and not more than 25 mole percent of the glyceryl being monoglyceryl ether, and (b) an anionic detersive surfactant. The compositions, which may be in granular or liquid form may also, contain other conventional ingredients e.g. other detersive, surfactants, detergency building compounds enzymes and bleaches.
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 November 2, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 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.
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.