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Expired Canadian patentCanada

Piston blind cutter

CA 2490780 C · Owner: Shade-O-Matic Ltd. · Inventors: Marocco, Norbert

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

An apparatus for cutting elements of a window covering such elements including at least a head rail the apparatus comprising a holding plate having an opening for holding the head rail in a selected position; a cutting die disposed adjacent to the holding plate and having an opening for receiving the head rail extending therethrough; and a driving means operable to pivot the cutting die relative to the holding plate so as to cut the head rail.

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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 December 20, 2004 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2024.
  • 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.
FiledDecember 20, 2004
GrantedApril 10, 2012
Term endedDecember 20, 2024
Patent numberCA 2490780 C
Classification (IPC)B23D23/00

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 20, 2004Patent grantedApril 10, 2012Term endedDec 20, 2024

Sources & verification

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