Patent US2883529A successfully refreshed from Google Patents.
US2883529A
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Voltage monitoring circuits
Assignee: Boeing Co
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Filing: 1954-03-15
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Granted: 1959-04-21
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 William F Marantette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:29
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/52; H03F1/54; H03F1/548
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2557729A
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US2647238A
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US2666136A
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US2602918A
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US2675473A
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US2721262A
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US2674727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |