Machine and method for the renewal of an asphalt surface
CA 2321062 A1 · Owner: Fjordane Eiendom As · Inventors: Osen, Ingvar Norvald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In reasphalting an asphalted road a cutting implement (9) with a substantially horizontal front edge (15) is inserted under the existing asphalt coating (5). As the cutting implement (9) advances (P1) the asphalt is loosened from the base (3) substantially as a whole. The loosened asphalt (5) is passed to a mixing chamber (25) and mixed with bitumen thus producing a new asphalt , material (10) which is added to the base (3) for the formation of a new asphalt coating (11).
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 February 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2021.
- 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.