Patent US2680900A successfully refreshed from Google Patents.
US2680900A
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Slag detection
Assignee: DOROTHY B EARLE
•
Filing: 1952-09-10
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Granted: 1954-06-15
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Expires: 1972-09-10
Abstract
No abstract record available.
Inventors
- 👤 Garrett B Linderman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
G; G21; G21H; G21H5/00; G21H5/02; G01; G01N; G01N33/00; G01N33/20; G01N33/204; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49764; Y10T29/49771; Y10T29/49773; Y10T29/49972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A METHOD OF LOCATING SLAG IN A BODY OF METAL, COMPRISING INTRODUCING INTO A MOLTEN SLAG-CONTAINING METAL A COMPOUND OF A RADIOISOTOPE MISCIBLE WITH SAID SLAG BUT SUBSTANTIALLY IMMISCIBLE WITH SAID METAL, AND DETECTING RADIOACTIVITY OF SAID BODY EXTERNALLY THEREOF.
Claim 2
Independent Claim
40 words
A METHOD OF LOCATING SLAG IN A BODY OF METAL, COMPRISING INTRODUCING INTO A MOLTEN SLAG-CONTAINING METAL A COMPOUND OF A RADIOISOTOPE MISCIBLE WITH SAID SLAG BUT SUBSTANTIALLY IMMISCIBLE WITH SAID METAL, AND DETECTING RADIOACTIVITY OF SAID BODY EXTERNALLY THEREOF.
References Cited (Backward Citations)
US2365553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |