Valve mounting device
CA 2249192 C · Owner: Eason, Trevor · Inventors: Khatchadourian, Varouj; Eason, Trevor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A test flange is used for an air brake piping system for railroad cars. The flange fits between an end flange of the brake cylinder pipe and the housing of, the valve to which it is normally connected. The test flange includes a through, aperture that aligns with the pipe end and the port in the valve housing and a test port, that carries a quick disconnect valve in a lug with a distinct offset from the symmetrical centre line of the test flange. An internal passage in the test flange leads, from the aperture to the test port.
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 5, 1998 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 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.