Low floor vehicle ramp assembly
CA 2269176 A1 · Owner: Lewis, Cleatus A. · Inventors: Lewis, Cleatus A.; Cohn, Alan R.; Simon, Curtis J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ramp assembly (20) for mounting in a low floor bus (22) or other vehicle. The ramp assembly (20) includes a rectangular enclosure (24) that fits underneath the, chassis of the low floor bus (22). The ramp assembly (20) includes a reciprocating, mechanism (26) for moving a ramp platform (28) between a fully deployed position, and a filly stowed position. During this movement the reciprocating mechanism , (26), raises the trailing end of the ramp platform (28) in one translational movement with the, extension of the ramp platform such that the trailing end of the ramp platform, when, deployed, is raised to the floor level of the low floor bus (22).
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 April 14, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2021.
- 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.