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Expired Canadian patentCanada

Support plate inspection device

CA 2133822 C · Owner: Brooks, Raymond J. · Inventors: Brooks, Raymond J.; Mcentee, Paul E.; Gay, John M.

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

A device for inspecting the support plates (26) and tube sheet of a nuclear steam generator. The device comprises a boom (14, 16) for extending into an access port of a steam generator and into a lane separating two rows of members the boom being uprightable within the lane (21); and a video camera (30) attached to the boom for inspecting the tube members and support plates within the lane when the boom is uprighted. In a preferred embodiment the video camera comprises a charge coupled device affixed to a remotely controlled pan and tilt mechanism.

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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

  • Filed April 5, 1993 and granted June 19, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2015.
  • 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 5, 1993
GrantedJune 19, 2001
Term endedApril 5, 2013
Patent numberCA 2133822 C
Classification (IPC)G21C17/01 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedApril 5, 1993Patent grantedJune 19, 2001Term endedApril 5, 2013

Sources & verification

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