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Expired Canadian patentCanada

Anchoring retainer for threaded fasteners

CA 1101704 A · Owner: Dry Dock Industries, Inc. · Inventors: Smith, Jon D.; Parker, Glenn T.

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

645.005, ABSTRACT OF THE DISCLOSURE, An anchoring retainer is provided for mounting at one side of a supporting structure such as a wall ceiling or the, like having an opening therein. The retainer is used with a threaded element or fastener which extends from the other side of the supporting structure through the opening into the retainer and together forms a fastener assembly. The retainer comprises a flexible unitary one-piece plastic body having an axis which is adapted to extend through the opening in the supporting structure. The body has a generally triangular configuration and is provided with a sleeve at the apex of the triangle. An opening is provided in the sleeve surrounding 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 May 26, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.
FiledOctober 2, 1978
GrantedMay 26, 1981
Term endedMay 26, 1998
Patent numberCA 1101704 A
Classification (IPC)F16B35/04

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedOct 2, 1978Patent grantedMay 26, 1981Term endedMay 26, 1998

Sources & verification

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