Combined tailgate and loader assembly for a dump truck
CA 2016376 C · Owner: Park, Robert W. · Inventors: Park, Robert W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dump truck body has a bed and side walls defining a rear opening which is closed by a tailgate and loader unit removably attached to adaptor brackets inserted into the side walls. The unit includes a U-shaped frame supporting extendable tracks which carry a vertical tailgate supported for pivotal movement to form a horizontal platform. The frame also encloses two pairs of oppositely directed hydraulic cylinders which move the tracks, and a cam mechanism is shifted into alignment to pivot the tailgate between horizontal and vertical positions in response to movement of the tracks. The entire unit is pivotally supported by the adaptor brackets to pivot from the truck body when the body is …
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 May 9, 1990 and granted February 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2012.
- 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.