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Expired Canadian patentCanada

A device for the safe removal of blood from a supply vessel

CA 2069772 C · Owner: Dade Behring Inc. · Inventors: Kratzer, Michael; Von Der Goltz, Volker Freiherr

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 safe removal of blood from a supply vessel with an aperture holder in which a part having an aperture is held and to which a capillary is attached, whereby the supply vessel can be closed by a cover part. The cover part has a region through which the capillary can be inserted into the supply vessel when the cover part is closed. Furthermore, the supply vessel and the aperture holder have a locking mechanism, with which aid the supply vessel can be locked to the aperture holder.

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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 March 2, 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
GrantedMarch 2, 1999
Term endedMay 28, 2012
Patent numberCA 2069772 C
Classification (IPC)B01L3/14 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 28, 1992Patent grantedMarch 2, 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.