Anionic surfactant-containing detergent compositions having soil-release properties
CA 1113338 A · Owner: The Procter & Gamble Company · Inventors: Derstadt, Donna M.; Moeser, Douglas W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Donna M Derstadt, and, Douglas W. Moeser Abstract of the Disclosure, Detergent compositions particularly effective in, removing oily soils from hydrophobic fibers such as polyester, are disclosed, containing specific anionic surface-active agents, polyester soil-release polymers and which may, contain only limited amounts of certain imcompatible anionic surface-active agents. The process of laundering fabrics in aqueous solutions of these compositions is also disclosed.
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 December 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1998.
- 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.