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Expired Canadian patentCanada

Attachment assembly

CA 1197716 A · Owner: Hilti Aktiengesellschaft · Inventors: Lang, Gusztav; Leibhard, Erich

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 attachment assembly includes an anchoring rod and a body of plastics material which can be fused or melted by heat. To secure the anchoring rod in a borehole initially the body of plastics material is inserted and then the anchoring member is heated and driven into the body of plastics material. The heat changes the character of the plastics material so that it secures the anchoring member within the borehole. The body of plastics material is formed of granules. The granules can be in loose form within a destructible container or envelope or they can be secured or bonded together so that the body is a unitary member.

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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 December 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1982
GrantedDecember 10, 1985
Term endedDecember 10, 2002
Patent numberCA 1197716 A
Classification (IPC)F16B13/14

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 11, 1982Patent grantedDec 10, 1985Term endedDec 10, 2002

Sources & verification

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