Type e railway coupler with expanded gathering range
CA 2274981 C · Owner: Mcconway & Torley Corporation · Inventors: Gagliardino, Joseph L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Type E railway freight car coupler having an expanded gathering range is achieved by attaching or forming an extension wing extending diagonally outward from an outer end of the gathering arm to thereby provide an extension to the angled gathering surface. The extension wing can either be cast as one piece directly with the coupler or cast separately and welded onto the coupler.
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 June 15, 1999 and granted January 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 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.