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Expired Canadian patentCanada

Shim for modular building panels and method for using the same

CA 2245458 C · Owner: Groupe Canam Inc./ Canam Group Inc. · Inventors: Strickland, Michael

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 method and apparatus for providing for expansion and contraction in modular building panels provides a quickly insertable shim structure that can be placed between, modular building panels adjacent bolt that secures the panels together. The shim is, inserted into a gap formed between two adjacent members that are to be joined from a, location external to the panels. The shim is U-shaped so that it passes over a bolt for, securing the members together. When the bolt is tightened the shim forms a , permanent, gap-forming structure. The adjacent members can be vertical members or horizontal, members. This shim is inserted at a location on the adjacent members between interconnected …

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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 August 24, 1998 and granted December 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 1998
GrantedDecember 4, 2001
Term endedAugust 24, 2018
Patent numberCA 2245458 C
Classification (IPC)E04B2/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 24, 1998Patent grantedDec 4, 2001Term endedAug 24, 2018

Sources & verification

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