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Expired Canadian patentCanada

Spacer for facing panels of concrete walls

CA 1072361 A · Owner: Tempes, Franz F. · Inventors: Tempes, Franz F.

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

A spacer for facing panels of a concrete wall including a pair of pegs, each having a head to lie against an external surface of a panel and a shank to pass freely through a hole in the panel. The shanks have a series of spaced holes in them so enabling the spacer to be used with different thickness panels, and a link is provided having bent-over ends to pass through holes in the shanks to connect them together. The ends co-operate in use with the heads to grip the panels whereby the spacing of the panels is determined.

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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 February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 26, 1980
Term endedFebruary 26, 1997
Patent numberCA 1072361 A
Classification (IPC)E04G17/06

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedFeb 26, 1980Term endedFeb 26, 1997

Sources & verification

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