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Expired Canadian patentCanada

Extruded molding for glass block structures

CA 2013448 C · Owner: Ballstadt, George · Inventors: Ballstadt, George

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

An extruded molding configured to frame glass masonry block for building structures, particularly wood frame structures, the molding having a flat base portion on which the block is seated and raised side elements forming a channel with breakaway spacer elements to accommodate block of different width, the molding in an exterior embodiment having a weather flash and as nailing flange to prevent water seepage under the molding, and in an interior embodiment having coupling members for coupling a cap for finishing edges of exposed glass block structures.

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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 March 30, 1990 and granted June 15, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2012.
  • 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 30, 1990
GrantedJune 15, 1999
Term endedMarch 30, 2010
Patent numberCA 2013448 C
Classification (IPC)E04B2/00 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 30, 1990Patent grantedJune 15, 1999Term endedMarch 30, 2010

Sources & verification

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