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Expired Canadian patentCanada

Adjustable width safety gate apparatus

CA 1286134 C · Owner: Nu Line Industries · Inventors: Johnson, Stanley A. Jr.

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

Adjustable width doorway safety gate apparatus of this invention discloses a gate comprised of two segments slidably adjustable to variable width doorways and hinges mounted on outer vertical edge of one gate segment with the hinges con-, sisting of hinge pins pointed downward and fitting in hinge pin sockets mounted on a spring loaded pole or on a doorway pillar and the two gate segments are locked to width by means of a lock spool segment extending through aligned holes in slots in center bar of gate segments, and the center bars ride on offset grooVes and matching runners of the center bars and, gate locking upper and lower U latches acting in concert activated by release of gate lock …

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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 July 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 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.
FiledSeptember 25, 1987
GrantedJuly 16, 1991
Term endedJuly 16, 2008
Patent numberCA 1286134 C
Classification (IPC)E06B11/00

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedSep 25, 1987Patent grantedJuly 16, 1991Term endedJuly 16, 2008

Sources & verification

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