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Expired Canadian patentCanada

Device for controlling beams of particles, x-ray and gamma quanta and uses thereof

CA 2095222 C · Owner: Kumakhov, Muradin A. · Inventors: Kumakhov, Muradin A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A device for controll-, ing beams of particles X-, rays and gamma rays in-, chiding a plurality of channels with total external ref-, lection inner surfaces input, butt-ends facing a radiation, source and output butt-ends aimed at a radiation receiv-, er is taught. Channel-farming elements are in the form, of surfaces tubes, and struc-, tures with multiple channels one are rigidly positioned, one relative to mother with a spacing between suports, such that the sagging of the channel-foaming elements, does not interfere with beam propagation The de-, vice can be used to capture radiation from sources which produce parallel or divergent radiation. The resulting beam or beams can be of 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 October 31, 1991 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 31, 1991
GrantedSeptember 10, 2002
Term endedOctober 31, 2011
Patent numberCA 2095222 C
Classification (IPC)G21K1/06 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedOct 31, 1991Patent grantedSep 10, 2002Term endedOct 31, 2011

Sources & verification

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