US2669838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump control apparatus for internal-combustion turbine engines
Assignee: Niles Bement Pond Co
•
Filing: 1946-09-13
•
Granted: 1954-02-23
•
Expires: 1966-09-13
Abstract
No abstract record available.
Inventors
- 👤 Ii Leighton Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:40
CPC Classifications
F; F02; F02D; F02D33/00; F02D33/003; F02C; F02C3/00; F02C3/20; F02C3/30; F02C7/00; F02C7/22; F02C7/236; F02M; F02M37/00; F02M37/0011; F02M37/0023; F02M37/0047; F02M37/007; F05; F05D; F05D2260/00; F05D2260/40; F05D2260/403; F05D2260/4031
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |