Liquid detergents containing anionic surfactant, builder and proteolytic enzyme
CA 1302924 C · Owner: Venegas, Manuel G. · Inventors: Venegas, Manuel G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Heavy-duty liquid laundry detergents containing anionic synthetic surfactant, detergency builder spe-, cific proteolytic enzyme, and calcium ion are disclosed. The compositions provide improved cleaning performance particularly through-the-wash, on enzyme-sensitive stains.
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
- Granted June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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.