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Expired Canadian patentCanada

Continuous or semi-continuous process for forming reconsolidated wood product

CA 1235870 A · Owner: Repco Limited · Inventors: Grace, William G.

CIPO record

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

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Abstract From the Canadian patent

Method and apparatus for forming a reconsolidated wood product from natural wood which has been rended to form flexible open lattice work webs of naturally interconnected wood strands. The webs are laid one over the other in overlapping fashion treated with a bonding agent, and compressed in a compression apparatus having two members which are cyclically moved towards each other to, effect compression of the webs, and then moved away from each other to permit further webs to be positioned for compression in the compression device. Movement of the webs through the apparatus is effected by engaging the bonded webs, after compression and when the members are moved away from each other, so as …

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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 May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 23, 1984
GrantedMay 3, 1988
Term endedMay 3, 2005
Patent numberCA 1235870 A
Classification (IPC)B27M1/08 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedNov 23, 1984Patent grantedMay 3, 1988Term endedMay 3, 2005

Sources & verification

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