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Expired Canadian patentCanada

Manufacture of wooden beams

CA 1231219 A · Owner: Ezijoin Pty. Ltd. · Inventors: Ezard, Francis I.

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 timber beam is formed of butt-joined timber lengths (19) using at least one joining plate (12) which extends around three sides of the abutted timber lengths. The joining plate has a base section (14) and two side sections (16) at, least the side sections each having a plurality of projections (17) extending therefrom. The base section has either additional projections (17) or holes (25) through which fasteners (20) engage to secure the base section to co-planar surfaces of the abutting timber lengths (19). The joining plate is formed with the base and side sections (14 16) co-, planar or with the side sections (16) extending at an angle to the base section (14). A press plate (21) forces …

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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

  • Granted January 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 24, 1984
GrantedJanuary 12, 1988
Term endedJanuary 12, 2005
Patent numberCA 1231219 A
Classification (IPC)E04C3/14 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedMay 24, 1984Patent grantedJan 12, 1988Term endedJan 12, 2005

Sources & verification

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