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Expired Canadian patentCanada

Folding door apparatus

CA 1302863 C · Owner: Kabushiki Kaisha Murakoshi Seiko · Inventors: Yamada, Nobuyuki

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 folding door apparatus having a folding door made up of a pair of door bodies with the internal ends of the paired door bodies rotatably connected together so that the door bodies can be folded at the internal ends; guide hinge bodies fitted to the upper and lower portions of each of the door bodies of the folding door; and guide rails for supporting and guiding, through the guide hinge bodies, the door bodies of the folding door as they are folded together for opening the door or stretched flat for closing the door. The guide hinge bodies each have a base,a hinge mechanism and a support member. The support member is mounted rotatably on the base through the hinge mechanism. The base is …

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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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
  • 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 21, 1989
GrantedJune 9, 1992
Term endedJune 9, 2009
Patent numberCA 1302863 C
Classification (IPC)E05D15/26 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedSep 21, 1989Patent grantedJune 9, 1992Term endedJune 9, 2009

Sources & verification

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