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Expired Canadian patentCanada

Saw guide for use with lined sheet material

CA 2488787 C · Owner: Harris, David N. · Inventors: Harris, David N.

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

A novel guide (216) is disclosed for fixing to a cutting tool (200) for cutting a piece of sheet material (100) having a plurality of fiducial lines (112) marked thereon. The guide (216) has a set of alignment marks (220) and a plurality of measurement scales (222) associated with the alignment marks (220). Each measurement scale (222) corresponds to at least one of the fiducial lines (112), such that when one of the alignment marks (220) is aligned with a particular fiducial line (112) the measurement scale (222) , corresponding to the particular fiducial line (112) indicates the distance of the blade (206) of the cutting tool (200) from an edge of the sheet material (100). …

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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 June 11, 2003 and granted May 29, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 2003
GrantedMay 29, 2012
Term endedJune 11, 2023
Patent numberCA 2488787 C
Classification (IPC)B23Q17/22 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJune 11, 2003Patent grantedMay 29, 2012Term endedJune 11, 2023

Sources & verification

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