Time of flight mass spectrometer and dual gain detector therefor
CA 2284763 C · Owner: Micromass Limited · Inventors: Gilbert, Anthony James; Merren, Thomas Oliver; Bateman, Robert Harold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ion detector (27) for use in a time-of-flight mass spectrometer (1) is disclosed. The ion detector (27), which has an extended dynamic range comprises at least one microchannel plate electron multiplier (42 32) , together with first and second collection electrodes (36 38; 39). The second , collection electrode (36 38) is arranged such that in receives more electrons per ion entering the ion detector (27) than the first collection electrode (39). In one embodiment the collection electrodes (36 38; 39) are formed in , an array consisting of a larger plate-like collection electrode (36 38) and a , smaller plate-like collection electrode (39). In an alternative embodiment a second …
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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 January 25, 1999 and granted January 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2021.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.