Enhancing voltmeter functionality
CA 2380267 A1 · Owner: Sullivan, Daniel Barber · Inventors: Sullivan, Daniel Barber
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Enhanced voltmeter leads (100A", 100B") includes load circuitry (105) having a test load (115) that can be switchably coupled between the leads (100A" 100B") to help identify faults in a circuit under test (110). In certain embodiments, the value of the test load (115) can be any appropriate value set according to parameters or characteristics of the circuit under test (110). In these embodiments, the value of the test load (115) can be set manually or automatically or both. The types of faults that can be identified include a short-to-ground, an open circuit, and a high (e.g. corrosive) resistance. The leads (100A", 100B") include a switch (130) whose setting is adjustable to …
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 July 21, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2022.
- 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.