Mass spectrometer and method of mass spectrometry
CA 2406960 C · Owner: Jackson, Michael · Inventors: Green, Martin; Jackson, Michael; Bateman, Robert Harold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mass spectrometer is disclosed wherein a z-lens 4 upstream of an orthogonal acceleration Time of Flight mass analyser 9 is repeatedly switched between a first mode wherein ions are transmitted to the mass analyser 9 for subsequent mass analysis with a relatively high transmission and a second mode wherein ions are transmitted with a relatively low transmission. If it is determined that mass spectral data obtained when the mass analyser 9 is in the first mode is suffering from saturation then suitably scaled mass spectral data obtained when the mass analyser 9 is in the second mode is used instead. If the saturation is severe then the mass spectral data obtained in the first mode may be …
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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 October 8, 2002 and granted March 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 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
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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.