Rear dumping vehicle
CA 2090698 C · Owner: Dickerson, Alan William · Inventors: Dickerson, Alan William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A very large rear dumping vehicle of the type used in mining operations, comprising: a main frame front wheels, and rear wheels carried by the main frame a rear dumping, load carrying body pivotally mounted to the main frame at transversely spaced rear supports for pivotal movement about a pivot axis between a tipping position and a lowered position, means for tipping the body about the pivot axis said body comprising a floor, side walls and a forward end wall defining a load carrying region, whereby said rear dumping load carrying body is supported in said lowered position on said main frame only at the transversely spaced rear pivot locations and at transversely spaced forward support …
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 August 26, 1991 and granted October 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 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.