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Expired Canadian patentCanada

Method for positioning glass sheets in a vertical assembly and pressing device for insulating glass panes

CA 2555828 C · Owner: Lenhardt, Karl · Inventors: Lenhardt, Karl

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

The invention relates to a method and a device for positioning pairs of opposing glass sheets (24, 25) in a vertical assembly and press device for insulating glass panes, said device forming part of a production line for said panes. To produce a pane of this type, a first glass sheet (24) and a second glass sheet (25) that comprises a spacer (27) are fed to the assembly and press device in a vertical position on a horizontal conveyor supported , against an inclined first support unit (1 31). Said assembly and press device , comprises a sub-assembly of two press plates (1a 2a), which can be , transferred from a first position in which they are inclined in opposite directions, into a …

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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 February 24, 2005 and granted July 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 24, 2005
GrantedJuly 31, 2012
Term endedFebruary 24, 2025
Patent numberCA 2555828 C
Classification (IPC)E06B3/67

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 24, 2005Patent grantedJuly 31, 2012Term endedFeb 24, 2025

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