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Expired Canadian patentCanada

Concrete wall formwork module

CA 2595474 C · Owner: Meilleur, Serge · Inventors: Grenon, Andre; Meilleur, Serge

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 concrete wall formwork module comprising a first side wall panel structure including a first grid and a first panel secured to the first grid, a second side wall panel structure including a second grid and a second panel secured to the second grid and connecting rods having , about a same length hingedly interconnecting the first and second side wall panel structures to allow movement thereof between a retracted parallel relationship to a spaced apart parallel relationship. A plurality of such concrete wall formwork modules allow assembling a formwork which is functionally similar to conventional formwork since the facing side wall panel structures are connected in a parallel …

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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 February 6, 2006 and granted January 28, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 6, 2006
GrantedJanuary 28, 2014
Term endedFebruary 6, 2026
Patent numberCA 2595474 C
Classification (IPC)E04B2/86 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 6, 2006Patent grantedJan 28, 2014Term endedFeb 6, 2026

Sources & verification

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