Adjustable lift dolly
CA 2420519 A1 · Owner: Robison, Randall W. · Inventors: Robison, Randall W.; Theising, John L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adjustable lift dolly apparatus is described for use in repeatedly lifting and transporting objects of different shapes and sires. A latching mechanism is described, which securely latches the dolly in the lifted position and can be easily released by using, a foot pedal. A counterbalance is included which prevents the lift dolly from inadvertently moving an object when the lift dolly is in the unlatched position.
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 27, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2025.
- 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.