Method for calibrating a mass spectrometer
CA 2453227 A1 · Owner: Bio-Rad Laboratories, Inc. · Inventors: Youngquist, Michael G.; Gavin, Edward J.; Weinberger, Scot R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for calibrating a time-of-flight mass spectrometer is disclosed. The method includes determining the time-of-flight values (56) or values derived , from the time of flight values for a calibration substance at each of a plurality of different addressable locations on a sample substrate. Then one , of the addressable locations on the substrate is identified as a reference addressable location. A plurality correction factors are then calculated (60) for the respective addressable locations on the substrate using the time of flight value (62), or a value derived from the time-of-flight value.
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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 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.