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Expired Canadian patentCanada

Method for construction of building, building and joint apparatus for construction members

CA 1287960 C · Owner: Shelter Home Co. Ltd. · Inventors: Kimura, Kazuyoshi

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 basic joint member and a plurality of application joint members are formed so that a side plate portion or end plate portion is fitted to the end face of a construction member constituting a post, a beam or the like and a coupling plate portion extending from the side plate portion or end plate portion orthogonally to the side plate portion or end plate portion is fitted in a groove formed in the end face of the construction member or is gripped between construction members including two parallel members and the connecting, plate portion is clamped by a clamping member. The basic member containing a longitudinal construction member is combined with and connected to at least one …

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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 August 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 31, 1987
GrantedAugust 27, 1991
Term endedAugust 27, 2008
Patent numberCA 1287960 C
Classification (IPC)E04B1/26

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedDec 31, 1987Patent grantedAug 27, 1991Term endedAug 27, 2008

Sources & verification

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