US2869565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical-pneumatic turbine control
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1953-07-13
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Granted: 1959-01-20
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Expires: 1973-07-13
Abstract
No abstract record available.
Inventors
- 👤 Cliborn Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:45
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/20; F01D17/22; F01D17/26; F01D17/02; F01D17/06; F01D21/00; F01D21/04; F01D21/06; G; G05; G05D; G05D13/00; G05D13/08; G05D13/10; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1171
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |