Standardization of spectral lines
CA 1325529 C · Owner: Collins, John B. · Inventors: Collins, John B.; Grosser, Zoe A.; Pruszkowski, Ewa M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for standardizing spectral line intensities in a spectral monochromator that separates an input beam into a sample spectral line characteristic of a sample element, a reference spectral line a standard, spectral line and a background spectral band. At a first point in time an intensity IA of the sample line a first, intensity IR1 of the reference line and a first intensity IB1 of the background band are measured. At a second point in time an intensity IS of the standard line a second intensity, IR2 of the reference line and a second intensity IB2 of the background band are measured. An intensity ratio IR defined by the formula, is computed wherein the intensity ratio …
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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
- Granted December 28, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 2010.
- 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.