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Expired Canadian patentCanada

Apparatus and method for plasma preparation

CA 2335409 C · Owner: Augello, Frank A. · Inventors: Augello, Frank A.; Carroll, Richard J.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A collection device for plasma preparation for diagnostic assays. The device comprises a spray-dried anticoagulant formulation on the interior surface of the device and a thixotropic polymeric gel. The device is an improvement over commercially available devices which contain liquid anticoagulant formulations for use in nucleic acid testing that employ amplifications technologies including but not limited to, polymerase chain reaction (PCR) branched DNA (bDNA) and nucleic acid sequenced based amplification (NASBA).

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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 December 2, 1997 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 2, 1997
GrantedJuly 2, 2002
Term endedDecember 2, 2017
Patent numberCA 2335409 C
Classification (IPC)B01D17/03 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 2, 1997Patent grantedJuly 2, 2002Term endedDec 2, 2017

Sources & verification

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