US2523286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency electrical apparatus
Assignee: General Electric Co
•
Filing: 1945-05-12
•
Granted: 1950-09-26
•
Expires: 1965-05-12
Abstract
No abstract record available.
Inventors
- 👤 Milan D Fiske
- 👤 Richard B Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
H; H03; H03C; H03C7/00; H03C7/02; H03C3/00; H03C3/10; H03C3/28; H03C3/30; H03C3/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2241976A
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US2311658A
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US2389271A
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US2394397A
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US2400752A
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US2412659A
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US2400753A
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US2413963A
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US2444194A
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US2421636A
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US2435984A
Cited
US2414085A
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US2413385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |