Detergent compositions comprising stabilised polyamino acid compounds
CA 2208701 C · Owner: Willey, Alan David · Inventors: Willey, Alan David; Hall, Robin Gibson
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 a detergent composition containing a detersive surfactant, at least one plyamino acid compound and at least one protein, wherein said polyamino acid compound and said protein are in close physical proximity, and which shows excellent storage stability especially , against enzymes, bleaches and high alkalinity. A process for producing said polyamino acid compound and said protein mixture in an agglomerate form further incorporated in a detergent composition is also provided.
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 August 7, 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.