US2642537A
Expired / Lapsed
US
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Apparatus for determining coating thickness
Assignee: United States Steel Corp
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Filing: 1949-12-22
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Granted: 1953-06-16
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Expires: 1969-12-22
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Carroll
- 👤 Donald S Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N23/223; G01N2223/00; G01N2223/07; G01N2223/076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
APPARATUS FOR DETERMINING THE THICKNESS OF TIN COATING ON A FERROUS BASE SAMPLE COMPRISING A SUPPORT FOR SAID SAMPLE, AN X-RAY TUBE ARRANGED TO DIRECT A PRIMARY X-RAY BEAM ON THE FERROUS BASE, A RADIATION DETECTOR ARRANGED ON THE SAME SIDE OF THE FERROUS BASE FOR DETECTING IRON FLUORESCENT RADIATION, MEANS FOR ROTATING SAID SUPPORT TO CHANGE THE ANGLE BETWEEN OF THE DETECTOR AND FERROUS BASE INDEPENDENTLY OF THE X-RAY TUBE, AND A MANGANESE FILTER BETWEEN THE DECTECTOR AND FERROUS BASE.
Claim 2
Dependent Claim
81 words
APPARATUS FOR DETERMINING THE THICKNESS OF TIN COATING ON A FERROUS BASE SAMPLE COMPRISING A SUPPORT FOR SAID SAMPLE, AN X-RAY TUBE ARRANGED TO DIRECT A PRIMARY X-RAY BEAM ON THE FERROUS BASE, A RADIATION DETECTOR ARRANGED ON THE SAME SIDE OF THE FERROUS BASE FOR DETECTING IRON FLUORESCENT RADIATION, MEANS FOR ROTATING SAID SUPPORT TO CHANGE THE ANGLE BETWEEN OF THE DETECTOR AND FERROUS BASE INDEPENDENTLY OF THE X-RAY TUBE, AND A MANGANESE FILTER BETWEEN THE DECTECTOR AND FERROUS BASE.
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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |