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Expired Canadian patentCanada

Air barrier sealing device

CA 1294792 C · Owner: Kappeler, Gerhard O. · Inventors: Kappeler, Gerhard O.; Shorney, Bruce D.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Title: Air Barrier Sealing Device Inventors: Gerhard O. Kappeler, Bruce D. Shorney ABSTRACT OF THE DISCLOSURE, A sealing device is provided for sealing an air barrier membrane to a wall, particularly to a wall having masonry tie anchors projecting outwardly therefrom. The device comprises a flat pre-formed member which can engage sealingly to the masonry tie anchors and which has surface means for sealingly securing the air barrier membrane thereto.

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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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 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.
FiledFebruary 2, 1988
GrantedJanuary 28, 1992
Term endedJanuary 28, 2009
Patent numberCA 1294792 C
Classification (IPC)E04B2/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 2, 1988Patent grantedJan 28, 1992Term endedJan 28, 2009

Sources & verification

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