Expired Canadian patentCanada
Mass spectrometer
CA 2391474 C · Owner: Micromass Uk Limited · Inventors: Bateman, Robert Harold; Giles, Kevin; Pringle, Steve
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ion guide (1) is disclosed wherein a travelling DC wave is passed along the length of the ion guide (1) so that ions exit the ion guide (1) having substantially the same velocity.
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 25, 2002 and granted April 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 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.
FiledJune 25, 2002
GrantedApril 19, 2011
Term endedJune 25, 2022
Patent numberCA 2391474 C
Classification (IPC)H01J49/26 +2 more
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.