Fluid-damped strut
CA 2030730 C · Owner: Lord Corporation · Inventors: Thorn, Richard P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid-filled strut particularly suited for automotive engine torque control applications. The strut includes a frame having a pair of fluid-filled chambers located adjacent opposite ends. Each chamber is defined by juxtaposed recesses in a pair of elastomeric blocks located on opposite sides of the frame. A discrete elongate fluid conduit connects opposite axial ends of each chamber. Attachment plates on opposite sides of the frame are bonded to the elastomeric blocks and are connected together by a connector bolt sleeve that extends across the frame through the fluid-filled chamber. The elastomeric blocks permit the frame to move in alternate axial directions relative to the sleeve and, …
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 November 23, 1990 and granted October 3, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 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.