Carriage suspension for lift truck
CA 2234836 C · Owner: The Raymond Corporation · Inventors: Ronald, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A carriage suspension system for use with a lift truck having a tractor a mast including a vertical track and a carriage suspended from the track for movement therealong. The carriage is raised and lowered via chains one end of, each chain being secured via a compressible spring which isolates the carriage from tractor vibrations and oscillations. The track restricts lateral carriage movement.
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, 1998 and granted May 22, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 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.