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Expired Canadian patentCanada

Fastening unit with nail anchorage

CA 1295860 C · Owner: Barthomeuf, Jean-Paul · Inventors: Barthomeuf, Jean-Paul; Ollivier, Jean

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 fastening unit with nail anchorage, is provided including a cylindrical body with a head and a support leg. The body includes a surface parallel to its axis for guiding an anchorage nail. The leg includes an expansion surface, slanted in one direction with respect to the axis of the body, and a surface for maintaining the nail under pressure, bent back in the other direction towards the axis of the body. The expansion surface extends between the guide surface and the pressure maintenance surface.

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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 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 10, 1987
GrantedFebruary 18, 1992
Term endedFebruary 18, 2009
Patent numberCA 1295860 C
Classification (IPC)F16B13/04 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedDec 10, 1987Patent grantedFeb 18, 1992Term endedFeb 18, 2009

Sources & verification

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