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Expired Canadian patentCanada

Endoscope with forceps locking mechanism

CA 1292652 C · Owner: Seike, Noboru · Inventors: Sakai, Minoru; Teranishi, Masatoshi; Seike, Noboru

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

In an endoscope there are provided in a manipulation terminal of an optical visual pipe thereof an eyepiece member a light-guide, various, operative instrument channels and a handling forceps channel. Further on the, handling forceps channel are mounted a gas feeding pipe and a locking mechanism for locking a handling forceps in position.

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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 December 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 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.
FiledFebruary 26, 1985
GrantedDecember 3, 1991
Term endedDecember 3, 2008
Patent numberCA 1292652 C
Classification (IPC)A61B1/00 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedFeb 26, 1985Patent grantedDec 3, 1991Term endedDec 3, 2008

Sources & verification

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