Road finisher
CA 2100408 C · Owner: Lutz, Dieter · Inventors: Lutz, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a road paver having a chassis (1) which is provided at the front with a skip (5) exhibiting pivotable side-wall sections for receiving, material (11) to be laid and is provided at the back with a laying plank (4), a conveyor being provided between the skip (5) and a distributing worm located in front of the laying plank (4) in the direction of travel, the skip (5) being open in the direction of the conveyor and the laying plank (4) exhibiting laterally extensible extension planks (13). In order to be able to close trenches located at the side of a roadway or install verges without any terrain-related or spatial problems arising, it is envisaged that the skip (5) is …
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
- Filed July 13, 1993 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2015.
- 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.