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Expired Canadian patentCanada

Pressure sensor

CA 2426418 C · Owner: B. Braun Melsungen Ag · Inventors: Steger, Juergen

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 pressure sensor comprises two supporting bodies (10,11) with plane supporting surfaces (12,13) between which a hose (14) is flattened. For measuring the internal pressure of the hose (14) a web (17) displaceable in a gap (16) is arranged at a supporting body (10) said web pressing against the plane surface of the flattened hose (14) and being supported on a force sensor (19). Thus the deformation forces generated upon compressing the hose are eliminated for the measurement of pressure.

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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 April 23, 2003 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 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.
FiledApril 23, 2003
GrantedJanuary 3, 2012
Term endedApril 23, 2023
Patent numberCA 2426418 C
Classification (IPC)G01L7/02 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedApril 23, 2003Patent grantedJan 3, 2012Term endedApril 23, 2023

Sources & verification

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