Apparatus for lifting and carrying heavy loads
CA 1286653 C · Owner: Mayle, Steven R. · Inventors: Mayle, Steven R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for lifting and carrying heavy loads includes a generally horizontally extending support beam attached between a pair of generally vertically extending posts. The lower end of each post is attached to one of a pair of generally horizontally extending side beams which are connected together at a front end by a steering mechanism. A winch for moving a load is coupled to the support beam and is connected to either a pan or directly to a load for releasably engaging and lifting a load. A rear edge of the pan is rotatably attached to the side beams and a front edge can be lifted by the winch to dump a load carried on the pan. A pair of lifting arms can be connected between the posts …
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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 July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
- 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.