US2750512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray spectrograph
Assignee: Melpar Inc
•
Filing: 1952-06-11
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Granted: 1956-06-12
•
Expires: 1972-06-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Meloy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:39
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/20; G01N23/207; G01N23/2076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A METHOD OF COMPARISON X-RAY SPECTROSCOPY OF A PAIR OF STATIONARY SPECIMENS, WHICH COMPRISES, GENERATING AN X-RAY BEAM, DIRECTING SAID BEAM IN ALTERNATION TOWARD EACH OF SAID SPECIMENS, AND MEASURING ONLY THE DIFFERENCES OF DIFFRACTED ENERGY FROM SAID PAIR OF SPECIMENS.
Claim 2
Independent Claim
41 words
A METHOD OF COMPARISON X-RAY SPECTROSCOPY OF A PAIR OF STATIONARY SPECIMENS, WHICH COMPRISES, GENERATING AN X-RAY BEAM, DIRECTING SAID BEAM IN ALTERNATION TOWARD EACH OF SAID SPECIMENS, AND MEASURING ONLY THE DIFFERENCES OF DIFFRACTED ENERGY FROM SAID PAIR OF SPECIMENS.
References Cited (Backward Citations)
US1657292A
Cited
US2119679A
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US2442752A
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US2451572A
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US2585740A
Cited
US2503062A
Cited
US2490673A
Cited
US2490674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |