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Expired Canadian patentCanada

Launderable textile sizing having stain resistance and soil release

CA 1235862 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Bries, James L.

CIPO record

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Abstract From the Canadian patent

Launderable Textile Sizing Having, Stain Resistance and Soil Release Abstract of the Disclosure, An aqueous fabric treating composition or sizing composition has been developed for application on laundered fabrics which provides excellent sizing together with oil and water repellency and improved soil release during laundering. The composition comprises a water soluble sizing hybrid copolymer containing water-solvatable polar groups and fluoroaliphatic groups and water. A method of treating fabrics and treated fabrics are also discussed.

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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 May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 8, 1985
GrantedMay 3, 1988
Term endedMay 3, 2005
Patent numberCA 1235862 A
Classification (IPC)D06M15/27

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedAug 8, 1985Patent grantedMay 3, 1988Term endedMay 3, 2005

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.