Patent US5562738A successfully refreshed from Google Patents.
US2847899A
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Method of and apparatus for spectrochemical analysis
Assignee: Commonwealth Scientific and Industrial Research Organisation
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Filing: 1954-11-16
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Granted: 1958-08-19
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Expires: 1974-11-16
Abstract
No abstract record available.
Inventors
- 👤 Walsh Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/3103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD OF DETERMINING SPECTROCHEMICALLY THE CONCENTRATION IN A SUBSTANCE OF A MEMBER OF THE GROUP CONSISTING OF AN ELEMENT AND ISOTIPES OF THAT ELEMENT; COMPRISING THE STEPS OF CONVERTING SAID SUBSTANCE INTO AN ATOMIC VAPOUR WHICH EMITS RADIATION, PASSING THROUGH SAID ATOMIC VAPOUR A BEAM OF RADIATION THE SPECTRUM OF WHICH CONTAINS AN ATOMIC SPECTRAL LINE CHARACTERISTIC OF A MEMBER OF SAID GROUP, AND MEASURING THE RATIO BETWEEN THE INCIDENT AND EMERGENT INTENSITIES OF SAID BEAM, WHICH RATIO IS DETERMINATIVE OF THE CONCENTRATION OF SAID MEMBER.
Claim 2
Independent Claim
87 words
A METHOD OF DETERMINING SPECTROCHEMICALLY THE CONCENTRATION IN A SUBSTANCE OF A MEMBER OF THE GROUP CONSISTING OF AN ELEMENT AND ISOTIPES OF THAT ELEMENT; COMPRISING THE STEPS OF CONVERTING SAID SUBSTANCE INTO AN ATOMIC VAPOUR WHICH EMITS RADIATION, PASSING THROUGH SAID ATOMIC VAPOUR A BEAM OF RADIATION THE SPECTRUM OF WHICH CONTAINS AN ATOMIC SPECTRAL LINE CHARACTERISTIC OF A MEMBER OF SAID GROUP, AND MEASURING THE RATIO BETWEEN THE INCIDENT AND EMERGENT INTENSITIES OF SAID BEAM, WHICH RATIO IS DETERMINATIVE OF THE CONCENTRATION OF SAID MEMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |