Earth planer
CA 1050754 A · Owner: Scofan Contractors Limited · Inventors: Scodeller, Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An earth grading machine has a powered reciprocable earth moving element guided by a vertically inclinable track member. Means for adjusting the vertical inclination of the track member includes support means accomodating pivotal movement of the track member in a vertical plane about both a first axis adjacent one end of the track member and about a second axis spaced longitudinally of the track member from said first axis. Adjustable means interconnects the track member and its support means in laterally offset relation to the first axis, and comprises a hydraulic cylinder pivotally connected to the support means, and a piston movable in response to hydraulic pressure within the cylinder, …
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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 March 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 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.
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.