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Expired Canadian patentCanada

Microfluidic devices incorporating improved channel geometries

CA 2287409 C · Owner: Kennedy, Colin B. · Inventors: Kennedy, Colin B.; Bousse, Luc; Dubrow, Robert S.

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

A microfluidic device comprising: a main analysis channel (100); a sample loading channel (102), sample loading channel (102) forming at intersection (108) with main analysis channel (100) sample introduction channels (104, 106) in fluid communication with sample loading channel (102) on opposite sides of intersection (108); first and second sample source (110 and 112) in fluid communication with sample introduction channels (104 106); load/waste , channels (114, 116) in fluid communication with sample loading channel (102) on opposite sides of intersection (108); and load/waste reservoirs (118 120) , in fluid communication with load/waste channels (114 116).

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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 April 13, 1998 and granted June 3, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 13, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 13, 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.
FiledApril 13, 1998
GrantedJune 3, 2003
Term endedApril 13, 2018
Patent numberCA 2287409 C
Classification (IPC)B81B1/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedApril 13, 1998Patent grantedJune 3, 2003Term endedApril 13, 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.