Patent Yard Sign in
Expired Canadian patentCanada

Machine for cutting away or peeling off road surfaces

CA 1048836 A · Owner: Wirtgen, Reinhard · Inventors: Wirtgen, Reinhard

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The invention relates to a machine for cutting away or peeling off road surfaces including a conveyor machinery transporting the cut away or peeled off material from the road level to a transportation means, said conveyor machinery being tiltingly hinged, at one of its ends around a perpen-, dicular, or almost perpendicular axis and is swingable from, a transport position into an operating position in which it can vertically adjustably be locked. The conveyor machinery is secured, at one of its ends, to a support having bushes at its ends which are vertically adjustably arranged on two parallel guide spars, said guide spars constituting together, with two crossbars secured to the ends …

Read the whole patent

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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 20, 1979
Term endedFebruary 20, 1996
Patent numberCA 1048836 A
Classification (IPC)E01C23/08 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedFeb 20, 1979Term endedFeb 20, 1996

Sources & verification

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