Expired Canadian patentCanada
Liquid dish cleaning compositions
CA 2536907 C · Owner: Colgate-Palmolive Company · Inventors: Szewczyk, Gregory
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 liquid dish cleaning composition with desirable cleansing properties comprising two C8-18 ethoxylated alkyl ether sulfate surfactants two anionic , LAS surfactants, an amine oxide surfactant a solubilizing agent, 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
- Filed August 27, 2004 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 27, 2004
GrantedJanuary 31, 2012
Term endedAugust 27, 2024
Patent numberCA 2536907 C
Classification (IPC)C11D1/83 +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.