Rotor assembly for a combine
CA 2120170 C · Owner: Case Corporation · Inventors: Tanis, Dale R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A threshing rotor for an agricultural combine. The threshing rotor comprises an elongated drum having a generally cylindrical outer wall defining a smooth outer surface or skin extending along the length of the drum and having a plurality of straps or bandscircumferentially arranged about and disposed along the outer wall of the rotor. Each band or strap has at least one threshing element connected thereto. A clamp mechanism releasably secures each strap against the outer wall of the drum and permits the strap and the threshing element connected thereto to be quickly replaced and/or shifted relative to adjacent threshing elements carried by adjacent straps. The threshing rotor further …
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 March 29, 1994 and granted November 17, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2016.
- 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.