Improved intermodal vehicle for forming a train of highway trailers
CA 2228707 A1 · Owner: Wicks, Harry O. · Inventors: Wicks, Harry O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved intermodal vehicle (10) for forming a train of highway trailers. The intermodal vehicle has an upper frame (42) to which highway trailers (12 14) may be, connected, each of the highway trailers having leading a trailing coupler socket assemblies (22 24). In the, improved design a continuous drawbar (150 176) is, provided. In addition, the upper frame (42) is mounted on a pair of steerable lower frames (30, 32) by springs (52 54), preferably air springs, their being a pair of springs for each rail wheel (26, 28) of the intermodal vehicle one, spring being positioned before each wheel and one being positioned after each wheel.
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 February 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2020.
- 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.