Center-pivot mower-conditioner drive
CA 2201947 C · Owner: Stephenson, Roger Dale · Inventors: Stephenson, Roger Dale; Walters, James C.; Rosenbalm, Allan Wesley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drive for a center-pivot mower-conditioner includes a power shaft supported within the center-pivot tongue and ending in an equal-angle drive section which intersects the vertical axis of the connection of the tongue with the center of a transverse beam forming part of a main frame of the mower-conditioner when the tongue is in a straight ahead position. A multiple v-belt drive transfers rotation of the tongue-carried drive-line to a substantially horizontal fore-and-aft extending main header drive shaft located just leftwardly of the transverse beam of the main frame. The main header drive shaft is coupled to a first header drive box containing right-angle gearing for directing power to …
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 April 4, 1997 and granted June 13, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2019.
- 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.