US3054252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket fuel composition
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1957-11-27
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Granted: 1962-09-18
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Expires: 1977-11-27
Abstract
No abstract record available.
Inventors
- 👤 James A Beckett
- 👤 Leslie C Rose
- 👤 Joseph T Hamrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:21
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/02; C06B47/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
A METHOD OF VARYING THE TEMPERATURE OF EXHAUST GASES EMITTED BY ROCKET ENGINES AND THE LIKE, WHICH COMPRISES CONTINUOUSLY SUPPLYING TO THE ENGINE, A MONOPROPELLANT MIXTURE OF UNSYMMETRICAL DI-METHYL HYDRAZINE AND NOT LESS THAN 25% NOR MORE THAN 40% BY WEIGHT OF AMMOMIUM NITRATE, APPLYING HEAT TO SAID MIXTURE WHILE IN SAID ENGINE TO EFFECT THE DECOMPOSITION THEREOF, AND VENTING THE EXHAUST GASES GENERATED DURING THE DECOMPOSITION STEP.
References Cited (Backward Citations)
US2159234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |