Air intake heater with integrated power and ground connector
CA 2344636 A1 · Owner: Prust, Andrew J. · Inventors: Prust, Andrew J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heater (110) for the intake manifold (14) of an internal combustion engine that includes a first heating element (122) having a first end (132) and a second end (138), a second heating element (124) having a first end (134) and a second end (140), and a first bolt assembly (128) that mechanically couples yet electrically isolates the first end (132) of the first heating element (122) from the first end (134) of the second heating element (124). In the heater (110), the first and second heating elements (122 124) are , electrically connected in series and the first end (132) of said first heating element (122) is electrically connected to the first bolt assembly (128). The first …
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 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2021.
- 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.