US2951678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerodynamic overspeed control for turbines
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1954-05-04
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Granted: 1960-09-06
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Expires: 1974-05-04
Abstract
No abstract record available.
Inventors
- 👤 Cliborn Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:12
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR337422A
Cited
GB191306692A
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US1156549A
Cited
CH114223A
Cited
US2219994A
Cited
DE713036C
Cited
GB540707A
Cited
FR882017A
Cited
US2382108A
Cited
US2648492A
Cited
US2710165A
Cited
FR1050616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |