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Expired Canadian patentCanada

Bolt anchor

CA 1058923 A · Owner: Itt Industries · Inventors: Scheuer, Nicholas G.

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 head-out expansion anchor which is particularly suitable for securing a heavy object to a support such as a floor or wall is disclosed. The anchor includes an elongated and generally cylindrical anchor sleeve which is formed from flat sheet stock and rolled to a given diameter wherein the confronting ends form a longitudinal slot extending from end to end thereof. A bolt is provided and includes a shank, having a diameter corresponding to the diameter of the formed sleeve, and a threaded portion of a reduced diameter at its leading end thereof. A tapered or conical transition portion is provided between the shank and threaded portions of the bolt. The threaded end receives a tapered …

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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 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 24, 1996.
  • 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—
GrantedJuly 24, 1979
Term endedJuly 24, 1996
Patent numberCA 1058923 A
Classification (IPC)F16B13/06

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJuly 24, 1979Term endedJuly 24, 1996

Sources & verification

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