Patent US2820340A successfully refreshed from Google Patents.
US2820340A
Expired / Lapsed
US
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Turbojet engine fuel and nozzle control system
Assignee: Motors Liquidation Co
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Filing: 1952-12-30
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Granted: 1958-01-21
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Expires: 1972-12-30
Abstract
No abstract record available.
Inventors
- 👤 Dolza John
- 👤 Otakar P Prachar
- 👤 John B Wheatley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:55
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F02K1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077384A
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US2095821A
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US2489586A
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US2622393A
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GB634095A
Cited
US2545703A
Cited
US2520967A
Cited
FR990332A
Cited
US2545856A
Cited
US2699646A
Cited
US2734340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |