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Expired Canadian patentCanada

Anchoring plug

CA 1290598 C · Owner: Fischerwerke Artur Fischer Gmbh & Co. Kg · Inventors: Fischer, Artur

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

An anchoring plug for anchoring objects to a support structure includes an expansible sleeve an expander body, driven into the expansible sleeve and a screw for driving the expander body into the expansible sleeve. A ring-shaped spring member, which forms a bearing for the expansible sleeve, is positioned at the trailing end of the expansible sleeve. The spring member has the external diameter greater than that of the expansible sleeve and may due to its, properties be compressed to the external diameter of the expansible sleeve.

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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 October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 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.
FiledFebruary 18, 1988
GrantedOctober 15, 1991
Term endedOctober 15, 2008
Patent numberCA 1290598 C
Classification (IPC)F16B13/06

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedFeb 18, 1988Patent grantedOct 15, 1991Term endedOct 15, 2008

Sources & verification

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