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Expired Canadian patentCanada

Board inverter for lumber conveyor

CA 2277720 C · Owner: United Industrial Products, Ltd. · Inventors: Moore, Stuart G.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A board inverter for mounting to a lumber conveyor includes one or more arms mounted to a freely rotatable hub which in turn is mounted to a lumber conveyor. The arms each include a recess set into a trailing edge for receiving a front side and lower face of a board whereby forward motion of a conveyed board lodges the board within the inverter and causes the inverter to spin about its axis thereby rotating the board about its long axis and depositing the board back onto the conveyor. The inverter is associated with an array of lugs having a generally plow-shaped front face. The lugs are mounted to a conveyor and serve to engage an array of boards and convey them in a transverse orientation …

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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

  • Filed December 20, 1993 and granted August 28, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 20, 1993
GrantedAugust 28, 2001
Term endedDecember 20, 2013
Patent numberCA 2277720 C
Classification (IPC)B27B31/04

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedDec 20, 1993Patent grantedAug 28, 2001Term endedDec 20, 2013

Sources & verification

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