Improved large truck
CA 2048636 C · Owner: Broken Hill Proprietary Company Limited (The) · 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 truck comprising a frame including spaced frame members (10 11; , 41, 42; 61, 62; 67, 68) carrying a forward frame means (14, 53, 63) for supporting at least two front wheels (W f) via suspension means (92), said frame means carrying hubs (12, 13; 45, 46; 81; 82) each supporting a pair of rear wheels (W r) one on either side of each hub, means (24, 25; 47; 73 74) for pivotally mounting a substantially rigid load supporting body (B) means (B; 56, 57; 89) for maintaining the transverse spacing between the rear wheel pairs, said frame members being constructed to provide resistance to torsional movement of said rear wheels due to braking and traction forces while providing …
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 March 2, 1990 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 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.