X-ray fluorescence analyzing apparatus
CA 2234316 A1 · Owner: Kuwabara, Shoji · Inventors: Kuwabara, Shoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An X-ray fluorescence analyzing apparatus is formed of an X-ray tube, plural X-ray spectroscopes disposed around a line linking between the X-ray tube and a place where a sample is placed and, first and second slit plates. The first slit plate has at least one first slit therein and is situated at an incident side of the X-ray spectroscopes. The second slit plate has at least one second slit therein, and is situated at an ejection side of the X-ray spectroscopes. X-rays radiated from the X-ray tube enter into the predetermined X-ray spectroscopes through the first slit plate and then pass through the second slit plate so that a sample is irradiated by predetermined X-ray wavelengths. The …
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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 April 8, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2020.
- 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.