Implement suspension mechanism
CA 2037249 C · Owner: Thorman, Christopher Scott · Inventors: Hunt, Kenneth Edward; Thorman, Christopher Scott; Kuhn, John Boyd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A mechanism for suspending an implement from a vehicle such as a lawn and garden tractor. The mechanism includes front and rear supports between the vehicle and implement the, supports being adapted for quick and easy connection. The rear supports include spring-loaded J-pins connectable with the tractor lift linkage. The front support includes a Ushaped member, the base of which is receivable in upwardly opening jaws carried on the implement. The sides of the Ushaped member serve as draft links and are adjustably coupled with a cross member that is receivable in similar jaws carried by the tractor. A latch handle is connected to a bell crank which is provided on …
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 February 27, 1991 and granted April 26, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 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.