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Canadian application, no grantCanada

A radiation detector for limiting spark discharges

CA 2398767 A1 · Owner: Ullberg, Christer · Inventors: Francke, Tom; Peskov, Vladimir; Ullberg, Christer

CIPO record

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Abstract From the Canadian patent

A detector (64) for detection of ionizing radiation and an apparatus for use , in planar beam radiography comprising such a detector. The detector comprises: a chamber filled with an ionizable medium; first and second electrode arrangements (2, 1, 18, 19) provided in said chamber with a space between them, said space including a conversion volume (13); means for electron avalanche amplification (17) arranged in said chamber; and at least , one arrangement of read-out elements (15) for detection of electron avalanches. To reduce the effect of possible spark discharges in the chamber at least one of the first and second electrode arrangements comprises a resistive material having a …

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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 March 30, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2022.
  • 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 30, 2000
GrantedNo grant recorded
Term endedMarch 30, 2020
Patent numberCA 2398767 A1
Classification (IPC)G01T1/18 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedMarch 30, 2000Term endedMarch 30, 2020

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