Liquid fabric conditioner containing fabric softener and peach colorant
CA 2055949 C · Owner: Unilever Plc · Inventors: Van Blarcom, David; Johnson, Donna E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid fabric conditioning composition comprising about 1% to about 40% by weight of a fabric softening component and a colorant system comprising a yellow colorant selected from the group consisting of C.I. Acid Yellow No. 17 C.I. Solvent Yellow, #33 and C.I. Acid Yellow #3 and a red colorant selected from the group consisting of C.I. Reactive Red #56 C.I. Reactive Red #147, and C.I. Acid Red #52.
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 November 21, 1991 and granted September 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2013.
- 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.