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Expired Canadian patentCanada

Optical-based sensing devices

CA 2605164 C · Owner: Colvin, Arthur E. Jr. · Inventors: Colvin, Arthur E. Jr.; Dehennis, Andrew D.; O'Connor, Casey 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

The present invention provides an electro-optical sensing device (110) for detecting the presence or concentration of an analyte. More particularly the , invention relates to optical -based sensing devices (110) which are characterized by being totally self-contained with a smooth and rounded , oblong, oval or elliptical shape (e.g. a bean- or pharmaceutical capsule- shape) and a size which permits the device to be implanted in humans for in- situ detection of various analytes . The sensing devices of the invention comprise a sensor housing (112) in which a circuit board (170) a radiation , source (118) , and a photodetector (120a 120b) are mounted. The radiation , source is attached …

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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 March 29, 2006 and granted June 17, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 29, 2006
GrantedJune 17, 2014
Term endedMarch 29, 2026
Patent numberCA 2605164 C
Classification (IPC)G01N21/77 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 29, 2006Patent grantedJune 17, 2014Term endedMarch 29, 2026

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