Patent US3064478A successfully refreshed from Google Patents.
US3064478A
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US
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Servo altimeter system
Assignee: RTX Corp
•
Filing: 1959-08-26
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Granted: 1962-11-20
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Expires: 1979-08-26
Abstract
No abstract record available.
Inventors
- 👤 Curtiss R Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:36
CPC Classifications
G; G01; G01C; G01C5/00; G01C5/06; G01L; G01L9/00; G01L9/0041; G01L9/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2315671A
Cited
US2460873A
Cited
US2718144A
Cited
GB778462A
Cited
US2921279A
Cited
US2885611A
Cited
US2930035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |