US3514949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turboprop fuel control for use with contaminated or varied fuels
Assignee: United States Department of the Navy
•
Filing: 1968-06-18
•
Granted: 1970-06-02
•
Expires: 1988-06-18
Abstract
No abstract record available.
Inventors
- 👤 John J Fredlake
- 👤 Milton F Keck
- 👤 Glennon V Schwent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:31
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2667935A
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US2657530A
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US2795107A
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US3103785A
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US2978034A
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US2977756A
Cited
US3023801A
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US3019602A
Cited
US3139922A
Cited
US3152444A
Cited
US3309868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |