Seat suspension
CA 2129785 C · Owner: Paccar Inc · Inventors: Stephens, Donald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a shock absorbing suspension system supporting a seat on a floor of a vehicle The suspension system includes a hydraulic bag filled with a liquid and coupled to, support the seat on the floor the hydraulic bag having an upper orifice. The suspension, system also includes a reservoir partially filled with liquid having a lower , orifice, an upper, orifice and a baffle positioned adjacent the lower orifice to impede the liquid from escaping, through the upper orifice. An adjustable valve supports the reservoir on the hydraulic bag and, has an internal passageway communicating with the hydraulic bag via its upper orifice and the, reservoir via its lower orifice to allow 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 9, 1994 and granted October 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2016.
- 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.