Patent US3049872A successfully refreshed from Google Patents.
US3049872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet engine combustion process
Assignee: Phillips Petroleum Co
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Filing: 1958-10-30
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Granted: 1962-08-21
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Expires: 1978-10-30
Abstract
No abstract record available.
Inventors
- 👤 Marvin M Johnson
- 👤 Robert M Schirmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:04
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/30; F02C3/00; F02C3/20; F02C3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A METHOD OF OPERATING A CONTINOUS COMBUSTION ENGINE HAVING A COMBUSTION CHAMBER, WHICH COMPRISES BURNING A HYDROCARBON FUEL WITH AIR IN SAID COMBUSTION CHAMBER; AND CONCOMITANTLY INJECTING CONTROLLED AMOUNTS OF AMMONIA SOLELY AND DIRECTLY INTO THE PRIMARY COMBUSTION ZONE IN SAID COMBUSTION CHAMBER ADJACENT SAID BURNING FUEL THEREBY MINIMIZING CARBON FORMATION AND DEPOSITION THEREIN.
Claim 2
Independent Claim
54 words
A METHOD OF OPERATING A CONTINOUS COMBUSTION ENGINE HAVING A COMBUSTION CHAMBER, WHICH COMPRISES BURNING A HYDROCARBON FUEL WITH AIR IN SAID COMBUSTION CHAMBER; AND CONCOMITANTLY INJECTING CONTROLLED AMOUNTS OF AMMONIA SOLELY AND DIRECTLY INTO THE PRIMARY COMBUSTION ZONE IN SAID COMBUSTION CHAMBER ADJACENT SAID BURNING FUEL THEREBY MINIMIZING CARBON FORMATION AND DEPOSITION THEREIN.
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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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |