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Expired Canadian patentCanada

Modular panel of expanded synthetic material provided with staggered longitudinal "t"-shaped channels, receiving "t"-shaped wooden posts useful for erecting walls

CA 2090868 C · Owner: Plastedil S.A. · Inventors: Cretti, Piero

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

A composite panel (1) particularly suited for erecting building with a structural load-bearing wooden framework (4) is formed by a substantially parallelepiped body of expanded synthetic material having a standardized thickness, a modularly standardized width and a customized height which is congruent with the design , floor height of the building to be constructed. The panels have a plurality of longitudinal channels extending for the whole height of the panel. A series of channels (2 3) uniforme-, ly spaced and staggered in the sense of said width and of said thickness of the panel, are open on the adjacent face of the panel and have a "T"-shaped cross section. In these open channels …

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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 July 8, 1991 and granted September 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 8, 1991
GrantedSeptember 18, 2001
Term endedJuly 8, 2011
Patent numberCA 2090868 C
Classification (IPC)E04C2/30 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 8, 1991Patent grantedSep 18, 2001Term endedJuly 8, 2011

Sources & verification

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