Liquid cleaning products
CA 2066869 A1 · Owner: Jurgens, Albertus · Inventors: Kimpton, Paul; Houghton, Mark P.; Russell, Stephen W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Non-aqueous liquid cleaning product compositions comprise a particulate solid phase dispersed in a non-aqueous liquid phase. The compositions contain a polymer comprising at least one first group capable of association with the particles of the solid phase and at least one second group capable of extending away from the surface of the particles.
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 April 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2014.
- 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.