Automatic hitch assembly
CA 2086688 C · Owner: Bergman, Ronald W. · Inventors: Bergman, Ronald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic hitch assembly for raising positioning and, coupling a tongue portion of a trailing vehicle to a drawbar portion of a pulling vehicle allowing for automatic coupling of the trailing vehicle with respect to the pulling vehicle while the driver remains in the pulling vehicle. A V-shaped guide member on the drawbar portion of the pulling vehicle is pivotal from an uncoupled substantially horizontal orientation for, receiving an elongated probe member on the tongue portion of the trailing vehicle during raising and positioning of the trailer vehicle, to a coupled substantially vertical orientation in which the V-shaped guide member is free from contact from the elongated probe …
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 January 5, 1993 and granted September 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 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.