US2713651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier circuit
Assignee: General Electric Co
•
Filing: 1951-03-23
•
Granted: 1955-07-19
•
Expires: 1971-03-23
Abstract
No abstract record available.
Inventors
- 👤 William N Coffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:03
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/26; H03K4/39; H03K4/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2336837A
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US2251851A
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US2358545A
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US2414546A
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US2506770A
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US2621307A
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US2466537A
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US2647173A
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US2516797A
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US2587313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |