Laundry detergent containing carboxylate
CA 1285449 C · Owner: Walker, John Richard · Inventors: Fakoukakis, Emanuel Pantelis; Walker, John Richard; Yap, Tjay Yong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Laundry compositions comprise a mixture of alkoxylated phthalate ester polymers and dicarboxylate detergency builders. The polymers provide a soil release benefit on fabrics and enhance the grease removal preperties of detergent compositions built with dicarboxylate builders.
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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2008.
- 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.