Controller for a backup alarm system
CA 2173455 C · Owner: Design Tech International, Inc. · Inventors: Gottlieb, Mark; Powell, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a control system (10) for a backup alarm (15). The system of the present invention allows an operator of a vehicle which employs a backup alarm warning system (15) to either activate or deactivate the backup alarm warning system as desired. In the system of the present invention if the vehicle operator places the vehicle in reverse a selected number of times within a, predetermined time period, then this can either activate or deactivate the backup alarm system (15).
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 August 4, 1995 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2017.
- 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.