Yoke casting for a drawbar assembly
CA 2111258 C · Owner: Hanes, Douglas M. · Inventors: Wurzer, Jeffrey D.; Mautino, Peter Scott; Hanes, Douglas M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integral single piece yoke casting for connecting one end of a railway car. Such single piece yoke casting includes a first side wall portion having a front face portion which engages at least a portion of a rear face of a front stop member secured within a longitudinal opening of a center sill member. A second side wall portion having a front face portion engages at least a portion of a rear face of another front stop member secured within such longitudinal opening of such center sill member. A horizontally disposed top wall portion having a third, predetermined length and a horizontally disposed bottom wall portion, having a fourth predetermined length in conjunction with, the first …
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 December 13, 1993 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2015.
- 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.