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Expired Canadian patentCanada

Continuously advancing track maintenance or rehabilitation machine

CA 1312783 C · Owner: Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. · Inventors: Theurer, Josef

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 continuous action track maintenance or rehabilitation machine comprises a first machine frame a carrier frame, arranged between the undercarriages supporting the first machine frame on the track, ballast tamping and track lifting and lining units vertically adjustably mounted on the carrier frame, and a drive linking the carrier frame to the first machine frame for longitudinally displacing the carrier frame with respect thereto. A second machine frame is linked to the rear end of the first machine frame and a, plow arrangement is vertically adjustably mounted on the second machine frame between the undercarriages thereof the, plow arrangement comprising a drive connecting the plow …

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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 January 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 1988
GrantedJanuary 19, 1993
Term endedJanuary 19, 2010
Patent numberCA 1312783 C
Classification (IPC)E01B27/17

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 31, 1988Patent grantedJan 19, 1993Term endedJan 19, 2010

Sources & verification

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