Patent US2915599A successfully refreshed from Google Patents.
US2915599A
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Logarithmic amplifier
Assignee: General Electric Co
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Filing: 1952-06-06
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Granted: 1959-12-01
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Expires: 1972-06-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Ricketts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:55
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/22; G; G01; G01S; G01S7/00; G01S7/52; G01S7/523; G01S7/526; G01S7/529; G06; G06G; G06G7/00; G06G7/12; G06G7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2118175A
Cited
GB475446A
Cited
US2330109A
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US2383420A
Cited
US2342238A
Cited
US2460907A
Cited
US2548913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |