Patent Yard Sign in
Expired Canadian patentCanada

Expandible structure

CA 1313447 C · Owner: Mahseredjian, Zaven H. · Inventors: Mahseredjian, Zaven H.

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 plurality of arch members are connected each to the next at alternate ends so that a structure is provided which may be curved or straight and movable between a collapsed and various degrees of expansion positions where the alter-, nately connected members from a zig-zag in plan. A flexible cover may be supported on the structure to form a shelter.

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 February 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 9, 2010.
  • 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 15, 1989
GrantedFebruary 9, 1993
Term endedFebruary 9, 2010
Patent numberCA 1313447 C
Classification (IPC)E04H6/02 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMay 15, 1989Patent grantedFeb 9, 1993Term endedFeb 9, 2010

Sources & verification

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