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US2582018A
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Thermionic multiplying and measuring circuit
Assignee: Individual
•
Filing: 1948-03-16
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Granted: 1952-01-08
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Expires: 1968-03-16
Abstract
No abstract record available.
Inventors
- 👤 El-Said Mohamed Abdu Hassan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:40
CPC Classifications
G; G01; G01R; G01R21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1586533A
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US2037202A
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US1936414A
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US2009069A
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US2156088A
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US2129880A
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US2232856A
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US2267184A
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US2314851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |