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Expired Canadian patentCanada

Optical fibre device fabrication

CA 1298505 C · Owner: West, Craig Alan · Inventors: Preston, Keith Robert; West, Craig Alan; Bargar, Daniel Scott

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

An optical device structure for use where an optical fibre requires to be accurately aligned in an optically coupled relationship with another optical component in a package 100 comprises an optical fibre 16 mounted in a feedthrough tube 9 which is aligned with a laser 6 through an aperture 18 in a wall 4 of the package 100. The alignment is held by a first alignment means 10 in this, case a sleeve spool, which is secured to the wall 4 and to the feedthrough tube 9 relatively close to the wall 4 and, by a second alignment means 11, in this case a tubular bushing, which is also fixed to the wall 4 and to the feedthrough tube 9 in a region remote from the wall 40 The use of the two alignment …

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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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 31, 1988
GrantedApril 7, 1992
Term endedApril 7, 2009
Patent numberCA 1298505 C
Classification (IPC)G02B6/42

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedMarch 31, 1988Patent grantedApril 7, 1992Term endedApril 7, 2009

Sources & verification

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