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Expired Canadian patentCanada

Temperature adaptable textile fibers and methods of preparing same

CA 1279754 C · Owner: Danna, Gary F. · Inventors: Danna, Gary F.; Bruno, Joseph S.; Frost, Cynthia M.

CIPO record

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Abstract From the Canadian patent

Temperature adaptable textile fibers are provided in which phase-change or plastic crystalline materials are filled within hollow fibers or impregnated upon nonhollow fibers. The fibers are produced by applying solutions or melts of the phase-change or plastic crystalline materials to the fibers. Cross-linked polyethylene glycol is especially effective as the phase change material, and, in addition to providing temperature adaptability, it imparts improved properties as to soil release, durable press, resistance to static charge, abrasion resistance, pilling resistance and water absorbency.

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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 February 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 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.
FiledSeptember 8, 1987
GrantedFebruary 5, 1991
Term endedFebruary 5, 2008
Patent numberCA 1279754 C
Classification (IPC)B05D3/02 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedSep 8, 1987Patent grantedFeb 5, 1991Term endedFeb 5, 2008

Sources & verification

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