Apparatus for transporting and laying road surfacing elements
CA 1090742 A · Owner: Allgemeine Strassenbaubedarfs-Ges. M.B.H. · Inventors: Plotner, Karl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for transporting and laying road surfacing elements of substantially slab-like form the, apparatus comprising a wheel- or roller-mounted frame capable of limited tilting movement; an outwardly extending cantilever arm and a handle attached to the frame at opposite ends thereof; lifting and lowering tongs for gripping the surfacing elements, which tongs are carried by the cantilever arm and are movable substantially vertically relative to the frame; and an energy-storage device arranged to permit lowering of the tongs from an elevated position and to cause return of the unloaded tongs back to the elevated position under control of a control device on the handle.
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 December 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.