Agricultural tractor
CA 1114652 A · Owner: Kubota, Ltd. · Inventors: Yoshii, Takashi; Murayama, Yoshinobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An agricultural tractor comprises a differential case containing a differential mechanism, a transmission case containing a first speed change mechanism, a speed change case not integral with the differential case or the transmission case and interposed between and directly coupled to the differential case and the transmission case. A second speed change mechanism is contained in the speed change case and is adapted to provide a greater reduction ratio than the maximum reduction ratio provided by the speed change mechanism.
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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 1998.
- 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.