Bushing for heavy vehicles
CA 2299273 C · Owner: Atro Engineered Systems, Inc. · Inventors: Sturmon, George R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substitute (71, 91, 151) for a lubricated metal-on-metal bushing (61 81, 117) for mounting the spring eye (5 7, 105, 107) of a, heavy over-the-road truck includes a sleeve part (73 93, 153) and a pin (75, 95, 155), the pin having bonded to it a polyurethane elastomer (78, 98, 157) with a Shore hardness greater than 60D. Similar bushings (321 233, 235) are substituted for other metal-on-metal bushings (309, 313, 211, 225) in the suspensions and brakes of heavy over-the-road vehicles.
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 September 3, 1998 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2020.
- 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.