Patent Yard Sign in
Expired Canadian patentCanada

Construction apparatus and construction method

CA 1329633 C · Owner: Teraoku, Hiroshi · Inventors: Horii, Shuji; Teraoku, Hiroshi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A construction apparatus comprising a framework installed above a completed structure of a building so as to form a working space for construction work including installing permanent columns over the completed structure, guide posts detachably held on the completed structure, elevating and locking mechanisms provided on the framework for elevating the framework to form the working space and for locking the framework to the guide posts, and construction means mounted on the framework and capable of carrying out the construction work in the working space. The framework is provided with a cover for covering the working space. A construction method of constructing a multistory building in …

Read the whole patent

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 May 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 5, 1989
GrantedMay 17, 1994
Term endedMay 17, 2011
Patent numberCA 1329633 C
Classification (IPC)E04G3/00 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 5, 1989Patent grantedMay 17, 1994Term endedMay 17, 2011

Sources & verification

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