Hard-surface cleaning compositions
CA 1332217 C · Owner: The Procter & Gamble Company · Inventors: Vos, Eddy; Culshaw, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to hard-surface cleaning compositions containing a binary mixture of organic solvent having a boiling point equal to or above 90°C and an, organic chelating agent containing neither phosphorous nor nitrogen, such chelating agents being selected from compounds having the formulae (I) to (VII) hereinafter described, or mixtures of compounds (I) to (VII).
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 October 4, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 4, 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.
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.