Hard surface cleaners containing ethylene oxide/propylene oxide block copolymer surfactants
CA 2462954 A1 · Owner: Avery, Richard W. · Inventors: Tsibouklis, John; Avery, Richard W.; Stone, Maureen J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein are hard surface antimicrobial cleaners and methods for using them. The cleaners include 0.2 - 5 % by weight of an ethylene oxide/propylene oxide block copolymer having an average molecular weight of at least 8000 and a carrier. This provides residual benefits on the hard surface such as soil resistance and resistance to bacteria, molds and biofilms. The cleaners , contain other surfactants and preferably also water and an organic acid.
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 October 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2024.
- 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.