Wheel retainer and loose wheel indicator for a vehicle
CA 2228022 C · Owner: Welch, Donald W. · Inventors: Welch, Donald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wheel retainer for the safety of all motor vehicles and more particularly fortrucks of all types to prevent wheels or wheel assemblies from flying off moving vehicles in the event of axle breakage or other mechanical failure which would cause a wheel or wheel assembly to fly off. The wheel retainer comprises brackets for attachment to a truck frame and a retaining bar which is removably attached to the brackets, the bar and brackets being positioned to prevent the wheel or wheel assembly from flying off of the vehicle. In a further modification of the wheel retainer, a loose wheel indicator is provided. The loose wheel indicator is adapted to be mounted on a turnable or steerable wheel or …
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 January 23, 1998 and granted September 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 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.