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Expired Canadian patentCanada

Wall construction

CA 1108014 A · Owner: Kawneer Company, Inc. · Inventors: Sukolics, Ronald D.

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

Abstract of the Disclosure A wall construction includes a framework of mullions supporting one or more glazing panels and the mullions comprise an elongated inside member having an outwardly facing outer wall with an inwardly extending portion offset from the center of the outside wall which is formed with a longitudinal recess in an outer face thereof. An elongated glazing element having an outer wall spaced outwardly of the outer wall of the inside member is provided to form one or more glazing pockets on laterally opposite sides of the mullion for receiving the edge portions of the glazing panels. The glazing element includes a tongue extending inwardly from the outer wall toward the …

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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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
  • 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 8, 1979
GrantedSeptember 1, 1981
Term endedSeptember 1, 1998
Patent numberCA 1108014 A
Classification (IPC)E04B2/88 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedFeb 8, 1979Patent grantedSep 1, 1981Term endedSep 1, 1998

Sources & verification

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