Mass spectrometer
CA 2431603 C · Owner: Giles, Kevin · Inventors: Giles, Kevin; 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 having a gas collision cell 25. An AC or RF ion guide 22 comprising a plurality of ring electrodes which preferably have the same internal diameter is provided within the gas collision cell 25. The ion guide 22 extends upstream and/or downstream of the gas collision cell 25 so that ions may be continuously radially confined as they pass from a vacuum chamber 28 maintained at a relatively low pressure through an inlet differential pumping aperture 29 to the gas collision cell 25 through the gas collision cell 25 and then out of the gas collision cell 25 through an outlet differential pumping aperture 30.
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 10, 2003 and granted March 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2025.
- 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.