US2857737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rocket propulsion
Assignee: Standard Oil Co
•
Filing: 1953-07-28
•
Granted: 1958-10-28
•
Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Don R Carmody
- 👤 Zletz Alex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:33
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/425; C; C06; C06B; C06B23/00; C06B23/009; C06B43/00; Y; Y10; Y10S; Y10S149/00; Y10S149/12; Y10S149/121
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A METHOD OF ROCKET PROPULSION WHICH COMPRISES INJECTING SEPARATELY AND SUBSTANTIALLY SIMULTANEOUSLY INTO THE COMBUSTION CHAMBER OF A ROCKET MOTOR A NITRIC ACID OXIDIZER SELECTED FROM THE CLASS CONSISTING OF WHITE FUMING NITRIC ACID CONTAINING ABOUT 4% OF POTASSIUM NITRATE AND 4% OF WATER AND RED FUMING NITRIC ACID CONTAINING AT LEAST ABOUT 16% OF N2O4 AND A LIQUID ROCKET FUEL CONSISTING OF (A) BETWEEN ABOUT 15 AND ABOUT 50 VOLUME PERCENT OF TRIRTHYLTRITHIOPHOSPHITEAND THE REMAINDER ESSENTIALLY ONLY TRIMETHYLTRITHIOPHOSPHITE, IN AN AMOUNT AND AT A RATE SUFFCIENT TO INITATE A HYPERGOLIC REACTION WITH AND TO SUPPORT COMBUSTION OF THE FUEL, WHEREIN SAID METHOD IS CHARACTERIZED BY OPERABILITY AT TEMPERATURE LOWER THAN -100*F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |