Gripping device and method of use
CA 2044895 C · Owner: Galrich Contracting Limited · Inventors: Gallo, Antonio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gripping device for use in combination with a front-end loader for lifting and transporting heavy objects, comprising a slot-entering jaw means second jaw, means, jaw adjusting means to effect movement of one of said slot-entering jaw means and said second jaw means relative to other of said jaw means, and loader cooperation means by which said device is adapted to cooperate with the loader. The device is particularly useful for removing slabs of concrete from a pre-cut concrete floor, such as found in multi-storey parking garages, during demolition or rehabilitation.
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 June 18, 1991 and granted November 8, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2013.
- 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.