Detergent composition comprising a laccase enzyme and a dye transfer inhibiting polymer
CA 2254932 A1 · Owner: Busch, Alfred · Inventors: Herbots, Ivan Maurice Alfons Jan; Barnabas, Mary Vijayarani; Busch, Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to detergent composition comprising a laccase and from 0.01 % to 2 %, preferably 0.05 % to 1 % by weight of a dye transfer inhibiting polymer, which provide effective and efficient cleaning of coloured stains and soils, significant dye transfer inhibition and the sanitisation of the treated surface.
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 May 13, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2019.
- 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.