Header suspension and lift means
CA 1061122 A · Owner: Sperry Rand Corporation · Inventors: Ehrhart, Philip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crop harvesting machine has a crop harvesting header a mobile, frame and improved header suspension and lift means. The frame includes an upper transverse elongated member and a pair of spaced apart side members fixed to the upper member proximate its opposite ends and extending downwardly therefrom. A pair of wheel arms extend rearwardly from the respective side frame members and are mounted to respective lower portions thereof for vertical swinging movement about a generally horizontal transversely-extending axis. Each wheel arm has a ground-engaging wheel rotatably mounted thereto. The improved header suspension and lift means includes an upper link pivotally interconnecting an upper …
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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 August 28, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 28, 1996.
- 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.