System for preventing unauthorized trailer uncoupling
CA 2467446 C · Owner: Volvo Group North America, Llc · Inventors: Borugian, Dennis A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for detecting uncoupling of a trailer (12) outside a planned uncoupling area. A GPS(24) determines the location of the trailer (12). A Vehicle computer (18) coupled to the GPS(24) is used to determine whether the trailer (12) has been uncoupled outside a planned uncoupling area.
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 13, 2002 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2024.
- 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.