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Expired Canadian patentCanada

Image intensifier system and image intensifier unit therefor

CA 1186815 A · Owner: Ng, Sing T. · Inventors: Ng, Sing T.

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Abstract From the Canadian patent

An image intensifier system receives incident image conveying electromagnetic radiation or atomic particles ("incident beam") and provides to signal processing and video equipment signals from which the image conveyed by the incident beam can be constructed and displayed. The system includes a source of electromagnetic radiation or atomic particles and a table for supporting a patient who is undergoing medical treatment or examination having a patient support and a patient base defining a compartment that receives an image intensifier. The image intensifier unit includes an intensifier a, handle, and a targeting or aligning device for aligning the incident beam source with the intensifier.

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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 7, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 7, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 30, 1981
GrantedMay 7, 1985
Term endedMay 7, 2002
Patent numberCA 1186815 A
Classification (IPC)A61B6/00 +1 more

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedDec 30, 1981Patent grantedMay 7, 1985Term endedMay 7, 2002

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