Aqueous cleaning and disinfecting compositions based on quaternary ammonium compounds and alkylpolyglycoside surfactants
CA 2328839 C · Owner: Lu, Robert Zhong · Inventors: Mccue, Karen Ann; Smialowicz, Dennis Thomas; Taraschi, Frederic Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aqueous disinfecting and cleaning compositions and concentrates which are efficacious against gram positive and gram negative bacteria include a , quaternary ammonium compound as its primary germicidal active agent have a , low content of active constituents and do not include organic solvents such as alcohols, glycols, or glycol ethers in significant amounts.
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 March 18, 1999 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2021.
- 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.