Fabric care composition
CA 2420922 A1 · Owner: Unilever Plc · Inventors: Chatfield, Robert James; Crawford, Robert John; Kilhams, Vanessa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fabric care composition comprises a cellulase and a polymeric material which is capable of self cross-linking and/or of reacting with cellulose wherein , the polymeric material comprises one or more poly(oxyalkylene) groups having an end group which comprises one or more amino groups or derivatives of said amino groups. The compositions may be used to treat fabric as part of a laundering process and improve the surface colour definition of the fabric following multiple washings and impart pill and/or fuzz resistance to fabric during laundering.
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 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2023.
- 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.