Railcar floor assembly
CA 2313834 A1 · Owner: Thrall Car Manufacturing Company · Inventors: Gunther, Jack L.; Mccallon, Wade L.; Recupido, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A railcar capable of carrying freight in commercial rail transport comprising a novel, floor support structure and a novel method of assembly. The railcar may comprise a center, beam car or other freight car having a load bearing floor. The railcar body comprises a, plurality of floor sheets a plurality of floor supports, and a frame comprising a plurality of, elongate structural members. Each of the elongate floor supports has its ends supported in, upwardly-opening channel segments on the elongate structural members. The floor supports, are preferably plug welded to the floor sheets. In the preferred embodiment the floor, supports are tubular stringers of square or other rectangular …
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 July 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2022.
- 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.