Automotive ignition coil assembly
CA 2172585 C · Owner: Wilmot, Theodore Steven · Inventors: Straub, Stephen William; Huston, Michael John; Wilmot, Theodore Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coil and spark plug assembly includes a substantially cylindrical tube housing the coil. The tube includes an element at a first end to transmit a low voltage power source to the coil, and an attachment device at a second end for attaching the tube to an engine. The tube further includes an internal device to house a terminal end of the spark plug and a high voltage connection for connecting the coil to the spark plug. The spark plug includes a firing end a tower shaped, insulator at the terminal end opposite the firing end and a, high voltage terminal recessed within the insulator. The terminal is constructed and arranged to make an electrical connection with the high voltage connector …
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 March 25, 1996 and granted June 29, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2018.
- 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.