Patent US3303651A successfully refreshed from Google Patents.
US3303651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear isotope monopropellant hydrazine engine
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1963-05-29
•
Granted: 1967-02-14
•
Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur F Grant
- 👤 John S Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:45
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/68; G; G21; G21D; G21D5/00; G21D5/02; Y; Y02; Y02E; Y02E30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
LIQUID PROPELLANT ENGINE COMPRISING: (A) A RECTION CHAMBER INCLUDING A CATALYST BED; (B) MEANS FOR INJECTING AT LEAST ONE LIQUID PROPELLANT INTO SAID CHAMBER; (C) AT LEAST ONE RADIOISOTOPE HEAT SOURCE POSITIONED ADJACENT SAID REACTION CHAMBER AND GENERATING SUFICIENT HEAT ENERGY TO MAINTAIN SAID CATALYST BED AT A TEMPERATURE SUFFICIENT TO INITATE THE RAPID REACTION OF SAID PROPELLANT.
Claim 2
Dependent Claim
58 words
LIQUID PROPELLANT ENGINE COMPRISING: (A) A RECTION CHAMBER INCLUDING A CATALYST BED; (B) MEANS FOR INJECTING AT LEAST ONE LIQUID PROPELLANT INTO SAID CHAMBER; (C) AT LEAST ONE RADIOISOTOPE HEAT SOURCE POSITIONED ADJACENT SAID REACTION CHAMBER AND GENERATING SUFICIENT HEAT ENERGY TO MAINTAIN SAID CATALYST BED AT A TEMPERATURE SUFFICIENT TO INITATE THE RAPID REACTION OF SAID PROPELLANT.
References Cited (Backward Citations)
US2930184A
Cited
US2975588A
Cited
US2999358A
Cited
US3054252A
Cited
US3049874A
Cited
US3108054A
Cited
US3120738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |