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Expired Canadian patentCanada

Textile treatment using a composition containing fluoroaliphatic ester, polymer and carbonylimino or imine compounds

CA 1192691 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Steel, Cynthia L.

CIPO record

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Abstract From the Canadian patent

Textiles are rendered water and oil resistant by contacting them with a composition containing waterinsoluble fluoroaliphatic radical- and aliphatic chlorinecontaining ester, water-insoluble fluoroaliphatic radical-containing polymer, and water-insoluble fluoroaliphatic radical-containing carbonylimino or imine compound.

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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 August 27, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 12, 1983
GrantedAugust 27, 1985
Term endedAugust 27, 2002
Patent numberCA 1192691 A
Classification (IPC)D06M15/37 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJan 12, 1983Patent grantedAug 27, 1985Term endedAug 27, 2002

Sources & verification

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