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Canadian application, no grantCanada

Calibration of fluorescence resonance energy transfer in microscopy

CA 2291730 A1 · Owner: Dilworth, Michael R. · Inventors: Coleman, William J.; Youvan, Douglas C.; Silva, Christopher M.

CIPO record

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Abstract From the Canadian patent

Imaging hardware, software, calibrants and methods are provided to visualize and quantitate the amount of Fluorescence Resonance Energy Transfer (FRET) occurring between donor and acceptor molecules in epifluorescence microscopy (1). The MicroFRET system compensates for overlap among donor acceptor and , FRET spectra using well characterized fluorescent beads as standards in conjunction with radiometrically calibrated image processing techniques. The MicroFRET system also provides precisely machined epifluorescence cubes (4) to maintain proper image registration as the sample is illuminated (3) at the donor and acceptor excitation wavelengths. Algorithms are described that …

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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 June 5, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 5, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 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.
FiledJune 5, 1998
GrantedNo grant recorded
Term endedJune 5, 2018
Patent numberCA 2291730 A1
Classification (IPC)A61B10/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 5, 1998Term endedJune 5, 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.