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Expired Canadian patentCanada

Moving and mixing of microdroplets through microchannels

CA 2304641 C · Owner: The Regents Of The University Of Michigan · Inventors: Burns, Mark A.; Gogoi, Bishnu; Handique, Kalyan

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

The movement and mixing of microdroplets through microchannels is described employing microscale device. Sample and reagent are injected into the device through entry ports (A) and they are transported as discrete droplets through channels (B) to a reaction chamber, such as a thermally controlled reactor where mixing and reactions (e.g. restriction enzyme digestion or nucleic acid amplification) occur (C). The biochemical products are then moved by the same method to an electrophoresis module (D) where migration data is collected by a detector (E) and transmitted to a recording instrument. Importantly the , fluidic and electronic components are designed to be fully compatible in …

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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 September 25, 1998 and granted September 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 25, 1998
GrantedSeptember 2, 2003
Term endedSeptember 25, 2018
Patent numberCA 2304641 C
Classification (IPC)G01N1/10 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedSep 25, 1998Patent grantedSep 2, 2003Term endedSep 25, 2018

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