Tracked vehicle
CA 2097401 C · Owner: Merritt, John T. · Inventors: Merritt, John T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A small, maneuverable, self-propelled tracked machine with a bucket or a digging tool. The machine is small and light enough to enter and be used in places, such as residential yards in which traditional machines with buckets and digging tools because of their size and weight, cannot be used. A three-stage gear pump powers the tracks and the boom on the bucket or digger. The machine has four outriggers to stabilize the machine during use, the outxiggers arranged substantially perpendicular to each other and at angles of approximately forty-five degrees from the longitudinal axis of the machine.
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 May 31, 1993 and granted September 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2015.
- 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.