Patent US3522545A successfully refreshed from Google Patents.
US3522545A
Expired / Lapsed
US
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Detection of weak signals from amid noise
Assignee: General Electric Co
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Filing: 1967-05-05
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Granted: 1970-08-04
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Expires: 1987-05-05
Abstract
No abstract record available.
Inventors
- 👤 David E Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:36
CPC Classifications
H; H03; H03D; H03D1/00; H03D1/02; H03D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2161764A
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US2523283A
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US2490530A
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US3095541A
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US2958043A
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US3334298A
Cited
US3369182A
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US3398373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |