Fabric softening liquid detergent
CA 1297440 C · Owner: Ramachandran, Pallassana · Inventors: Shulman, Jan E.; Ramachandran, Pallassana
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
I.R. 4259- 1, ABSTRACT OF THE DISCLOSURE A stabilized enzyme-containing built liquid detergent is provided comprising, (a) from about 5 to 20% by weight, of one or, more surface active detergent compounds selected from the group consisting of anionic nonionic and amphoteric detergent compounds; (b) from about 5 to 30%, by weight, of one or more builder salts selected from the group consisting of alkali metal tripolyphosphates, alkali metal carbonates, alkali metal nitrilotriacetates and polyacetal carboxylates;, (c) from about 5 to 20% by weight, of a swelling, bentonite clay; (d) an effective amount of an enzyme or an enzyme mixture selected from the group consisting of alkaline protease …
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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 March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 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.