Heat shielded, spark plug boot assembly
CA 1231405 A · Owner: General Motors Corporation · Inventors: Liska, Daniel P.; Mcgee, Joseph A.; Bezusko, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A heat shielded spark plug boot, assembly comprises an elastomeric boot and an electrically grounded heat shield. The heat shield has a thin inner dielectric barrier which is configured to protect against electrical discharges through the thinner vulnerable portions of the elastomeric boot and to be bypassed by corona conduction from the elastomeric boot to the metal shell of the heat shield. The elastomeric boot is ribbed to provide air flow passages between the elastomeric boot and the heat shield.
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
- Granted January 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2005.
- 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.