Patent US2654057A successfully refreshed from Google Patents.
US2654057A
Expired / Lapsed
US
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Electronic amplifying apparatus
Assignee: Honeywell Inc
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Filing: 1950-08-21
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Granted: 1953-09-29
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Expires: 1970-08-21
Abstract
No abstract record available.
Inventors
- 👤 Douglas W Rivenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1801657A
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US2150440A
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US2224119A
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US2260977A
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US2425733A
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US2429636A
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US2478203A
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US2434822A
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US2507304A
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US2579001A
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US2556556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |