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Expired Canadian patentCanada

Building structure folding and unfolding under the effect of the weight of the same and along vertical joint axes

CA 2512884 C · Owner: Rulquin, Fabien · Inventors: Rulquin, Denis; Rulquin, Gregory

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

The invention relates to a structure for the construction of folding and unfolding buildings for example, horse stables but not limited thereto of the type comprising frames made from welded profiles and covered with panels or sheets which may comprise doors windows or ventilators, the whole assembly being covered by a roof. The structure is characterised in comprising after deployment and installation, a parallelepiped volume with a rigid front façade (2) and rear façade (3) and two folding lateral walls. Each lateral wall (4 5) comprises jointing means (19) on one central vertical joint axis (6) and on two secondary vertical joint axes (7 and 8) provided to either side of the central axis …

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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 October 16, 2003 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 16, 2003
GrantedApril 10, 2012
Term endedOctober 16, 2023
Patent numberCA 2512884 C
Classification (IPC)E04B1/34

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 16, 2003Patent grantedApril 10, 2012Term endedOct 16, 2023

Sources & verification

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