US2878434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Error sensing servo component
Assignee: North American Aviation Corp
•
Filing: 1954-05-10
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Granted: 1959-03-17
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Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:07
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/21; G05B19/23; G05B19/231; H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2539623A
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US2610295A
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US2556200A
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US2537427A
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US2686632A
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US2658139A
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US2612550A
Cited
US2685084A
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US2731631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |