Detergent composition comprising zeolite map and amylase enzymes
CA 2210646 C · Owner: Wauben, Johan Juliaan Serafin · Inventors: Clare, Jonathan Richard; Brown, Carolyn Jayne; Wauben, Johan Juliaan Serafin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A detergent composition is disclosed which contains an amylase enzyme and a detergency builder comprising zeolite P having a silicon to aluminium ratio not greater than 1.33 (zeolite MAP). Granular and liquid detergent compositions are preferred and methods of making such compositions are disclosed.
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 January 5, 1996 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 2018.
- 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.