Rail road car draft fittings
CA 2531940 C · Owner: National Steel Car Limited · Inventors: Forbes, James W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rail road car has draft sills, and draft gear mounted in the draft sills by which loads are passed along the train line of cars. The draft gear is mounted to the drafts sill webs between front and rear draft stops. The front and rear draft stops have portions that protrude beyond the plane of the inner face o the draft sill webs. The rear draft stops have a boss that extends past the plane of the inside face of the draft sill web such that the peripheral weld about the boss may tend to be placed in stress in the plane of the web.
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 30, 2005 and granted June 3, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.