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Expired Canadian patentCanada

Process for printing on synthetic fibers

CA 1182255 A · Owner: Basf Aktiengesellschaft · Inventors: Grund, Norbert; Blum, Adolf

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, Process for printing on synthetic fibers of polyester, triacetate, acetate and polyamide as well as mixtures of these substances with disperse dyes according to the discharge or reserve discharge process wherein a, mixture of, a) 5 to 75 parts by weight of at least one reducing agent and, b) 5 to 90 parts by weight of a specified alkoxylated amine is used as the discharging agent.

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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 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 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.
FiledApril 2, 1982
GrantedFebruary 12, 1985
Term endedFebruary 12, 2002
Patent numberCA 1182255 A
Classification (IPC)D06P3/26 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedApril 2, 1982Patent grantedFeb 12, 1985Term endedFeb 12, 2002

Sources & verification

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