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Expired Canadian patentCanada

Turning knob with lock

CA 2597776 C · Owner: Schneider Electric Industries Sas · Inventors: Thizon, Patrice; Desaphie, Bernard

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

The invention concerns a turning knob (1 1') with lock for an electric circuit comprising a body (10) for receiving a barrel (11) rotating relative to a stator (14) said barrel (11) comprising springs (110) receiving a key (2) capable while rotating of taking up at least two functional retained or released positions and having at one of its ends a shank (11d) capable of being actuated by rotating the key. Said knob (1 1') is characterized in that the body (10) has an inner cylindrical sleeve (102) whereon the stator (14) is urged to be positioned said inner sleeve having a number of identical members for positioning the stator each positioning member of the inner sleeve (102) matching 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 9, 2006 and granted January 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2026.
  • 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 9, 2006
GrantedJanuary 29, 2013
Term endedFebruary 9, 2026
Patent numberCA 2597776 C
Classification (IPC)E05B27/00 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 9, 2006Patent grantedJan 29, 2013Term endedFeb 9, 2026

Sources & verification

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