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Expired Canadian patentCanada

Mobile track renewal installation

CA 1287261 C · Owner: Theurer, Josef · 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 mobile track renewal installation for the continuous replacement of the rails and ties of a track comprises a leading and a trailing work vehicle arranged for continuous advancement on a track in an operating direction. The leading work vehicle bridges an intermediate renewal section where an existing track is replaced by a new track and carries a ballast excavating and planing apparatus for removing ballast from the ballast bed and planing the remaining ballast bed, and an apparatus for laying ties on the planed ballast bed immediately behind the ballast excavating and planing apparatus, in the operating direction. The trailing work vehicle carries apparatus for fastening rails to the …

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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 August 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 7, 1987
GrantedAugust 6, 1991
Term endedAugust 6, 2008
Patent numberCA 1287261 C
Classification (IPC)E01B27/11 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJan 7, 1987Patent grantedAug 6, 1991Term endedAug 6, 2008

Sources & verification

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