Expired Canadian patentCanada
Articles and methods for treating fabrics in clothes dryer
CA 1331678 C · Owner: The Procter & Gamble Company · Inventors: Trinh, Toan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Dryer-added fabric conditioning articles and methods utilizing fabric softener agent and anionic polymeric soil release agent to provide soil release benefits with greater safety for dryer surfaces.
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 August 30, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 30, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 30, 1988
GrantedAugust 30, 1994
Term endedAugust 30, 2011
Patent numberCA 1331678 C
Classification (IPC)D06M23/02 +2 more
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.