Braking device
CA 2267203 C · Owner: Noguchi, Noboru · Inventors: Itoh, Kenji; Noguchi, Noboru; Sakamoto, Shigeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Connected midway a primary passage (18) which connects a master cylinder (14) and a braking cylinder (10) to each other, is a discharge side of a pump (16) through an auxiliary passage (20), and provided on a portion of the primary passage (18) between a connection of the primary passage (18) and the auxiliary passage (20) and the master cylinder (14) is a pressure regulating valve (22) adapted to permit a working liquid from the pump (l6) to leak to the master cylinder (14) when a discharge pressure of the pump (16) tends to be higher than a set value relative to a master cylinder liquid pressure. The pump (16) is actuated during a braking operation and when it is necessary to generate a …
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 September 19, 1997 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2019.
- 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.