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Expired Canadian patentCanada

Poly(amide-imide) conduit

CA 1329535 C · Owner: Buck, Thomas F. · Inventors: Fukuda, Diane P.; Buck, Thomas F.; Eldredge, Arthur S. Jr.

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

A motion transmitting remote control assembly (10) for transmitting motion in a curved path including a liner (12) disposed within a conduit 16 and a motion transmitting core element (14) moveably supported by the liner (12). The liner (12) is made essentially of, polytetrafluroethylene (PTFE). The assembly (10) is characterized by the liner (12) further including poly(amide-imide) for increasing the strength and lubricity thereof. Preferably, the liner comprises 97 weight percent polytetrafluroethylene and 3 weight percent poly(amide-imide).

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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 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 21, 1988
GrantedMay 17, 1994
Term endedMay 17, 2011
Patent numberCA 1329535 C
Classification (IPC)G05G1/08 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 21, 1988Patent grantedMay 17, 1994Term endedMay 17, 2011

Sources & verification

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