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Expired Canadian patentCanada

Mass spectrometer for macromolecules with cryogenic particle detectors

CA 2196291 C · Owner: Twerenbold, Damian · Inventors: Twerenbold, Damian

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Abstract From the Canadian patent

A mass spectrometer with phonon sensitive cryogenic particle detector (1) to determine the masses of macromolecules including proteins, large peptides, long DNA-fragments and polymers. The kinetic energy of the electrostatically accelerated charged macromolecule (6) is absorbed in the cryogenic particle detector (1) thereby exciting phonons (7) which are detected by phonon sensors (2). The macromolecules are detected in the single particle counting mode with a sensitivity independent of their respective masses. In one embodiment the , mass spectrometer contains a single-channel cryogenic particle detector providing high sensitivity. In another embodiment the mass spectrometer , …

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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 July 31, 1995 and granted October 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 31, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 31, 1995
GrantedOctober 16, 2001
Term endedJuly 31, 2015
Patent numberCA 2196291 C
Classification (IPC)H01J49/02 +1 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedJuly 31, 1995Patent grantedOct 16, 2001Term endedJuly 31, 2015

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