Liquid hard-surface cleaning compositions based on specific dicapped polyalkylene glycols
CA 2280829 C · Owner: Procter & Gamble Company European Technical Center N.V. · Inventors: Evers, Marc Francois Theophile; Gordon, Neil James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Liquid hard-surface cleaning compositions are disclosed which comprise particular dicapped polyalkoxylene glycols. These compositions provide excellent next-time cleaning performance on hard-surfaces soiled by various soils, especially greasy type soils and/or burnt/sticky food residues typically found in a kitchen.
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 February 10, 1998 and granted October 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2020.
- 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.