Display of electronic self-test results using gauge dial pointers
CA 2081402 C · Owner: International Truck Intellectual Property Company, Llc. · Inventors: Dannenberg, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Results of self-testing of portions of an automotive vehicle's electronic instrument cluster are displayed on the cluster's speedometer and tachometer. A fault in a particular portion is indicated by operating the pointers of both meters in unison by repetitive sweeping from zero to a particular location corresponding to the particular portion containing the fault. Detection of no faults is indicated by sweeping both pointers in unison from zero to maximum and back. A person can judge the movements of the meters by observing whether the pointers sweep smoothly in unison or in an erratic manner.
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 October 26, 1992 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2014.
- 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.