US2635192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent spectral analysis
Assignee: Babcock and Wilcox Co
•
Filing: 1949-10-24
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Granted: 1953-04-14
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Expires: 1969-10-24
Abstract
No abstract record available.
Inventors
- 👤 Marcel A Cordovi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:56
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/20; G01N23/207; G01N23/2076; G01N23/22; G01N23/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB382518A
Cited
US2347638A
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US2445132A
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US2442752A
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US2452045A
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US2449066A
Cited
US2521772A
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US2540821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |