Fuel reservoir
CA 2301030 C · Owner: Toyota Jidosha Kabushiki Kaisha · Inventors: Itoh, Takaaki; Kobayashi, Masahide; Ishikawa, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel reservoir for storing a fuel, provided with a wall which divides the inner space of the reservoir into a fuel chamber and an air chamber and is variable in shape depending upon the amount of fuel in the fuel chamber a , discharge passage opened to a space formed above a fuel liquid surface in the fuel chamber, and a shut-off valve for normally shutting off the discharge passage. When the shut-off valve is opened a gas is discharged from the space , through the discharge passage. If the amount of the gas is greater than a predetermined amount, the shut-off valve is opened so as to discharge the gas out of the space. On the other hand, if the amount of the gas is less than the …
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 August 31, 1998 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 31, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 2020.
- 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.