Device for driving a stake into the ground
CA 2107489 C · Owner: Bellemare, Serge · Inventors: Bellemare, Serge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for driving a stake into the ground particularly a foundation stake of new or existing buildings. The device may also be used for stabilizing raising and shoring foundations, or for any other similar application. The device has two hydraulic jacks on which are secured two rods, the hydraulic jacks and the rods being parallel to the driving axis of the stake. The device has also a driving member provided with a hammering head continuously in contact with the upper end of the stake during the power stroke of the hydraulic jacks. Bores are provided in the hammering head in which the rods are inserted. Latches facing each other are provided in the hammering head to prevent segments of …
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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
- Filed October 1, 1993 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 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.