Mass spectrometer
CA 2391060 C · Owner: Micromass Limited · Inventors: Bateman, Robert Harold; Hoyes, John Brian; Wildgoose, Jason Lee
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 comprising an ion mobility spectrometer (4) in combination with a quadropole mass filter (5) is scanned in synchronisation with the pulsing of ions into the ion mobility spectrometer (4) thereby enabling ions having a particular charge state to be preferentially transmitted. Another embodiment replaces the quadropole mass filter (5) with an axial time of flight mass filter and an injection electrode.
Read the whole patent
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 20, 2002 and granted August 9, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 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.