Jacking device
CA 1072536 A · Owner: Grimes, Gary C. · Inventors: Grimes, Gary C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention comprises a jacking device including a base member adapted in part to be placed in contact with a supporting surface; a ramp member connected at one of its ends to the base member, the ramp member being provided at its upper surface with guide means, preferably in the form of a slot in-, tegral with the upper surface and extending longitudinally thereof. At least one intermediate supporting member is provided to extend between the ramp member and the base member supporting, the ramp member at an acute angle relative to the base member. Positioned for constrained sliding engagement within the slot or guide means is a load contacting member the movement of, which longitudinally …
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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 February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
- 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.