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Expired Canadian patentCanada

Insulation fastening device

CA 2204938 C · Owner: Hilti Aktiengesellschaft · Inventors: Kluser, Remo; Beck, Harald

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 device for fastening an insulation element to a constructional component and including a large-surface head a hollow shank projecting from the head and having an inner space which is freely accessible from an opening provided in the head for receiving a fastening member lid supported on the head and pivotable about an articulation axis located outside of the opening for closing the opening with the lid engaging, in its closed position, a projection extending from a head surface extending parallel to a cross-sectional surface of the hollow shank.

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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

  • Filed May 9, 1997 and granted October 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 1997
GrantedOctober 30, 2001
Term endedMay 9, 2017
Patent numberCA 2204938 C
Classification (IPC)F16B15/02 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMay 9, 1997Patent grantedOct 30, 2001Term endedMay 9, 2017

Sources & verification

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