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Expired Canadian patentCanada

Apparatus for feeding side boards in a sawmill

CA 1206070 A · Owner: Ahlstrom (A.) Osakeyhtio · Inventors: Vartiainen, Jorma A.

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

Apparatus for feeding side boards in a sawmill immediately after sawing a log or a block into a central portion (16) and side boards, (17, 18, 19, 20) comprising a longitudinal conveyor (1) for transporting the central portion in its longitudinal direction, movable supporting planes (2 3), supplied on both sides of the longitudinal conveyor for temporarily holding up the side boards and side supports (4, 5) for supporting the side boards in side direction. A slope (6, 7) is provided beneath the longitudinal conveyor on both sides of if, along which the side boards (17 18, 19, 20) slide, down onto a transverse conveyor (12 13), and the slopes are, provided with stopping means (8 9) to stop …

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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 June 17, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 18, 1983
GrantedJune 17, 1986
Term endedJune 17, 2003
Patent numberCA 1206070 A
Classification (IPC)B27B25/00 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedMay 18, 1983Patent grantedJune 17, 1986Term endedJune 17, 2003

Sources & verification

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