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Expired Canadian patentCanada

Linear accelerator

CA 2113069 C · Owner: Ehrhart, Peter · Inventors: Ehrhart, Peter; Grundl, Andreas; Heidelberg, Gotz

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 linear accelerator (2) has at least one longitudinal stator section (4) that defines a linear path of movement and that comprises several stator wets (8, 10, 12, 14), as weft as a rotor (30) with several rotor coils (34, 36, 38, 40) that can be accelerated along the path of movement. The stator is designed as a tubular body (6) upon the inner wall of which project colt carriers with coil conductors that are mutually offset by 90 °, The thus formed cavities (16, 18, 20 22) are engaged by the rotor , coils, (34 36, 38, 40) that comprise each an electrically non-conductive carrier on the side on which are arranged meandering coil conductors. The design and arrangement of the rotor coils (34; …

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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 July 7, 1992 and granted October 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2014.
  • 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 7, 1992
GrantedOctober 23, 2001
Term endedJuly 7, 2012
Patent numberCA 2113069 C
Classification (IPC)H02K41/02 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJuly 7, 1992Patent grantedOct 23, 2001Term endedJuly 7, 2012

Sources & verification

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