Patent US2524985A successfully refreshed from Google Patents.
US2524985A
Expired / Lapsed
US
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Noise-level responsive amplifier
Assignee: Individual
•
Filing: 1946-03-26
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Granted: 1950-10-10
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Expires: 1966-03-26
Abstract
No abstract record available.
Inventors
- 👤 Mayne William Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:57
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2008698A
Cited
US2112279A
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US2261951A
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US2306991A
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US2255683A
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US2303357A
Cited
US2307790A
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US2303358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |