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Expired Canadian patentCanada

A device for the automatic examination of blood samples

CA 2069792 C · Owner: Dade International Inc. · Inventors: Von Der Goltz, Volker Freiherr; Kratzer, Michael

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 pertains to a device for the automatic examination of blood samples with one test station in which, blood is taken from a supply vessel and is fed through an aperture in a part held in an aperture holder. At least one test head is provided, to which is fed from a first magazine holder supply vessels with blood, and from a second magazine holder aperture holders are fed. After performance of at least one measurement on one aperture holder, the used aperture holder and the used supply vessel are removed from the test head and the test head is cleaned by a cleaning device.

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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 May 28, 1992 and granted May 11, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 28, 1992
GrantedMay 11, 1999
Term endedMay 28, 2012
Patent numberCA 2069792 C
Classification (IPC)G01N35/02 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 28, 1992Patent grantedMay 11, 1999Term endedMay 28, 2012

Sources & verification

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