Suspension system for heavy duty vehicles
CA 2104057 C · Owner: Van Mill, Michael D. · Inventors: Van Mill, Michael D.; Steimel, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A suspension system for a cart having a pair of longitudinally aligned, oscillating wheel support units pivotally mounted fore and aft within a frame assembly on each side of the cart, a pair of longitudinally aligned wheels mounted on each support unit the frame, assemblies pivotally mounted in transverse alignment centrally of the cart for movement with the wheel support units in a vertical plane, all three pivotal mountings on each side of the part having horizontal axes disposed transversely of the cart with the load, of the cart distributed on each side to a quartet of wheels and with each pair of wheel support units oscillatable independently of each other and independent of the …
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 13, 1993 and granted July 8, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 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.