Expired Canadian patentCanada
Cleaning compositions
CA 1092004 A · Owner: Colgate-Palmolive Company · Inventors: Straw, Alan; Dillarstone, Alan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition suitable for cleaning glass comprising a source of fluoride ion, organic and/or mineral acid anionic and/or nonionic, surfactant and water.
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
- Granted December 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 15, 1978
GrantedDecember 23, 1980
Term endedDecember 23, 1997
Patent numberCA 1092004 A
Classification (IPC)C11D1/00 +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.