Early warning device for tire rims and hub assemblies
CA 2226829 C · Owner: Chia, Sam · Inventors: Mantini, John; Adams, Ken; Chia, Sam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an apparatus to provide a monitoring device fordetecting problems associated with the wheels of trucks and trailers. The apparatus comprises one or more individual axle spindle sensors a programmable micro processor, for receiving and processing the sensor signals to detect an alarm condition and alarm means to alert the driver of a problem with one or more of the wheels.
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 February 11, 1998 and granted August 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 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.