Four wheel drive working vehicle
CA 1307948 C · Owner: Kubota, Ltd. · Inventors: Umemoto, Tomeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A four wheel drive working vehicle comprises a first shaft for driving rear wheels, and a second shaft for driving front wheels. The first and second shafts are coaxially and relatively rotatably supported by a transmission case. The first shaft carries a first gear relatively rotatably mounted thereon, and the second shaft carries a second gear fixed thereto. A gear transmission unit is detachably bolted to the transmission case to transmit drive from the first gear to the second gear. A clutch device is mounted on the first shaft to be switchable between a position to directly interconnect the first shaft and the second gear for driving the front and rear wheels at the same speed, and a …
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
- Granted September 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 2009.
- 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.