Two piece hand brake release handle
CA 2239272 C · Owner: Stroer, W. Kurt · Inventors: Stroer, W. Kurt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two piece hand brake release handle for a railway car hand brake mechanism having a relatively long lever one end of which is rotably fitted onto a rotatable brake release post extending from the hand brake mechanism such that manual, rotation thereof will not cause rotation of the brake release post, and a relatively short lever arm tightly fitted onto the brake release post such that rotation thereof will cause rotation of the brake release post, with the relatively short lever arm having an arm engaging flange extending transversely to receive and engage the relatively long lever arm such that manual rotation of the long lever arm in a given rotational direction will cause the long …
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 May 29, 1998 and granted July 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 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.