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Expired Canadian patentCanada

Hermetic optical fibre feedthrough

CA 1102598 A · Owner: Kovats, Tibor F. I. · Inventors: Kovats, Tibor F. I.

CIPO record

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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 A hermetic feedthrough for a fiberoptic device package is fabricated by locating a fiber end part along the central axis of a tube and injecting alloy through a port in the tube wall to solidify in the space between the fiber and the wall. The tube itself is then soldered into a bore through a wall of the package. The alloy used is characterized by low thermal coefficient of expansion minimal relaxation, after solidification and appreciable expansion as it solidifies. - i -

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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 June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 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.
FiledJuly 24, 1979
GrantedJune 9, 1981
Term endedJune 9, 1998
Patent numberCA 1102598 A
Classification (IPC)G02B6/44 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJuly 24, 1979Patent grantedJune 9, 1981Term endedJune 9, 1998

Sources & verification

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