Tractor implement hitch
CA 1108917 A · Owner: Deere & Company · Inventors: Schafer, Richard A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An implement hitch for an articulated agricultural fourwheel drive tractor includes draft links secured to the rear section of the tractor by spherical bearings and carrying couplers to connect an implement. Loads applied by the implement act along lines through spherical bearings in the ends of each draft link and extend into the tractor to converge and intersect slightly in front of the rear axle of the rear section of the articulated tractor.
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 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 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.