A method and apparatus for transferring ions from an atmospheric pressure ion source into an ion trap mass spectrometer
CA 2282804 C · Owner: Syka, John Edward Philip · Inventors: Syka, John Edward Philip; Schwartz, Jae C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ion transfer assembly for transferring ions from an atmospheric pressure ion source into an ion trap mass spectrometer with reduced random noise during analysis of the transferred ions. A method of reducing noise due to charged particles undesolvated charged droplets, or ions in an ion trap mass spectrometer connected to an atmospheric pressure ionization source.
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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 September 17, 1999 and granted December 31, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2021.
- 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.