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Expired Canadian patentCanada

Beam end weld preparation

CA 2669774 C · Owner: Conxtech, Inc. · Inventors: Simmons, Robert J.

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 full-section, weld-enhanced, gravity-lock full-moment nodal , connection is provided between the end of an I-beam having spaced flanges and the , side of a column. The connection includes a gravity-lock male-female inner , and , outer mating components. The inner component is anchored to the side of the column. The outer component is joined to the end of the beam in a beam-flange/outer-component , overlapping manner and through at least one full-section weld. The weld is located at and along a region of the beam-flange/outercomponent , overlap existing between the outer component and the beam-end flanges.

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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 April 27, 2004 and granted November 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 2004
GrantedNovember 13, 2012
Term endedApril 27, 2024
Patent numberCA 2669774 C
Classification (IPC)E04B1/24 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 27, 2004Patent grantedNov 13, 2012Term endedApril 27, 2024

Sources & verification

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