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Expired Canadian patentCanada

Multifilament thread

CA 1112525 A · Owner: Frohlich Wolff G.M.B.H. · Inventors: Gundlach, Rudolf

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

MULTIFILAMENT THREAD", A flexible thread consisting of filaments held together by twisting, which thread is made of a polymer base material wherein all of the individual filaments of the thread are encased in a synthetic resin and embedded therein so that adjacent filaments are intimately bonded to one another, the synthetic resin being in partially cured state, chemically stable at room temperature the, resin being fully curable by heating; the thread can therefore, be woven into a mesh before final curing to harden the thread

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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 November 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 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.
FiledApril 26, 1979
GrantedNovember 17, 1981
Term endedNovember 17, 1998
Patent numberCA 1112525 A
Classification (IPC)D02G3/00 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedApril 26, 1979Patent grantedNov 17, 1981Term endedNov 17, 1998

Sources & verification

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