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Expired Canadian patentCanada

Seeding machine with a pneumatic seed ejecting means, especially for vegetable culture

CA 1160108 A · Owner: Nodet-Gougis · Inventors: Maury, Jean-Pierre

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention relates to a seeding machine of the pneumatic ejection type. The seeding machine includes an apertured distributor disk 2 which rotates past a suction chamber 3 terminating in an end wall 4 and an ejector venturi 1 is juxtaposed to the side of disk 2 opposite to chamber 3, neck 7 of said venturi being located in line with the end of said chamber and having an inlet port 8 which straddles the path of travel 5 of the suction apertures in disk 2. The machine has an application to the sowing of light seeds such as vegetable seeds.

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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 January 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 3, 1981
GrantedJanuary 10, 1984
Term endedJanuary 10, 2001
Patent numberCA 1160108 A
Classification (IPC)A01C7/20 +1 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedApril 3, 1981Patent grantedJan 10, 1984Term endedJan 10, 2001

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.