Train of highway trailers using improved railroad truck suspension
CA 1304987 C · Owner: Wabash National Corporation · Inventors: Curtis, Richard D.; Smith, Sam D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A railroad train comprising a plurality of highway trailers hitched front end to rear end with the end of each trailer supported on an adapter releasably connected to the trailer and with the adapter permanently mounted on the bolster of a four-wheel double-axle railroad truck, desirably a swing motion truck, with the adapter also supported by side bearings mounted on the bolster and with the adapter desirably having a secondary spring suspension.
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
- Granted July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
- 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.