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Expired Canadian patentCanada

Reflection-photometric analytical system

CA 2434442 C · Owner: Ziegler, Friedrich · Inventors: Ziegler, Friedrich

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

The invention concerns a reflection-photometric analytical system having a measuring head (10) comprising a source of radiation (36) and a radiation detector , (26) for the reflection-photometric analysis of a target surface (12) of a test object , (14) arranged at a distance from the measuring head (10) and in particular of a test , strip for body fluids such as urine or blood. A triangulation unit (16) operating on the , basis of optical triangulation is proposed for checking the distance without making , contact in order to monitor or regulate the measuring distance.

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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 July 8, 2003 and granted June 14, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 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.
FiledJuly 8, 2003
GrantedJune 14, 2011
Term endedJuly 8, 2023
Patent numberCA 2434442 C
Classification (IPC)G01N21/78 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 8, 2003Patent grantedJune 14, 2011Term endedJuly 8, 2023

Sources & verification

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