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Expired Canadian patentCanada

Saw blade

CA 2086975 C · Owner: Fluhrer, Manfred · Inventors: Fluhrer, Manfred; Kullmann, Jorg H.

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 saw blade having a basic body (1) and unset teeth (2 1, 2 2, ect.) has recurring cycles of teeth each, cycle having at least one group of teeth with a height decreasing from tooth to tooth and width at the same increasing. The teeth (2 1, 2 2, ect.) are formed symmetrically with respect to a longitudinal center plane (8) through the basic body (1). The effective cutting edges or cutting-edge sections (6 1, 12 1; 14 1 12 2, ect.) of , all the teeth (2 1, 2 2 ect.) are in each case formed by a, jutting-out cutting edge the inner section (6 1, 6 2, ect.) , of which runs approximately perpendicularly with respect to the longitudinal center plane (8) and which is adjoined externally by a phase …

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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 January 8, 1993 and granted January 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 8, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 8, 1993
GrantedJanuary 18, 2000
Term endedJanuary 8, 2013
Patent numberCA 2086975 C
Classification (IPC)B23D61/12 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJan 8, 1993Patent grantedJan 18, 2000Term endedJan 8, 2013

Sources & verification

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