Method and apparatus for plastifying and tearing up of damaged road-surfaces and covers
CA 1094375 A · Owner: Schoelkopf, Walter · Inventors: Schoelkopf, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION:, METHOD AND APPARATUS FOR PLASTIFYING AND TEARING UP OF DAMAGED ROAD-SURFACES AND COVERS ABSTRACT OF THE DISCLOSURE:, In a method and apparatus for resurfacing a road the road, surface is first plastified and broken-up. The broken-up material is immediately distributed on the road surface whereby the broken-up material is simultaneously rearranged and profiled or contoured without the introduction of fresh asphalt or bituminous material at this point of time. A road surfacing or repaver apparatus then introduces fresh asphalt or bituminous material to the broken-up distributed, rearranged and profiled top surface of the road. Preferably, two distributions of 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 January 27, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 27, 1998.
- 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
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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.