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Expired Canadian patentCanada

Glass optimization

CA 2467436 C · Owner: Clayton, Byron C. · Inventors: Perry, William V. Jr.; Dorsch, Paul Victor; Clayton, Byron C.

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 glass cutting station having a controller that lays out a pattern of lites to be cut from set of glass sheets to fulfill the lite requirements of a multiple number of cutting batches. The controller identifies one or more underutilized glass sheets in a first set of glass sheets that have free space with no lites designated to be cut in the first batch. The controller also lays out a pattern of lites to be cut to fulfill the lite requirements of an additional or second batch in the number of batches by utilizing at least some of the free space on the underutilized glass sheets of the first set of glass sheets. Additionally the controller designates other glass sheets from which to cut …

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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 17, 2004 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2026.
  • 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 17, 2004
GrantedMay 7, 2013
Term endedMay 17, 2024
Patent numberCA 2467436 C
Classification (IPC)C03B9/41 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 17, 2004Patent grantedMay 7, 2013Term endedMay 17, 2024

Sources & verification

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