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Expired Canadian patentCanada

Pivot block for bifold doors

CA 1293887 C · Owner: Jerila, Torsti Toivo Tarmo · Inventors: Jerila, Torsti Toivo Tarmo

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Abstract: Hardware for a bifold door includes stiles and rails fittable along the edges of a flat panel to form a door and four identical corner blocks for interconnecting the stiles and rails. Each corner block is generally rectangular and fits into a U-shaped channel in an adjacent stile and the U-shaped channel in an adjacent rail. A single hole extends through the block parallel to the stile and closer to one edge of the block than the opposite edge for receiving either a pivot or a guide depending on the block's location on the assembled door. An orientation indicating marker on the exposed face of the block permits the four blocks to be identically oriented. When assembled to form a …

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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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 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.
FiledFebruary 3, 1987
GrantedJanuary 7, 1992
Term endedJanuary 7, 2009
Patent numberCA 1293887 C
Classification (IPC)E05D15/26 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedFeb 3, 1987Patent grantedJan 7, 1992Term endedJan 7, 2009

Sources & verification

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