US3279176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion rocket engine
Assignee: North American Aviation Corp
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Filing: 1959-07-31
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Granted: 1966-10-18
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Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
- 👤 Robert H Boden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:13
CPC Classifications
F; F03; F03H; F03H1/00; F03H1/0037; F03H1/0006; F03H1/0025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
IN A PROPULSION SYSTEM FOR USE IN AN OUTER SPACE VEHICLE, A SOURCE OF PROPELLANT, A SOURCE OF ELECTRICAL ENERGY, A THRUST CHAMBER, IONIZING ELECTRODE MEANS IN SAID THRUST CHAMBER CONNECTED TO SAID PROPELLANT SOURCE AND A FIRST HIGH POTENTIAL TERMINAL OF SAID ELECTRICAL SOURCE FOR GENERATING PLASMA, SAID PLASMA INCLUDING ATOMS, IONS, AND ELECTRONS, FOCUSING ELECTRODE MEANS IN SAID THRUST CHAMBER OPERATIVELY CONNECTED TO A SECOND HIGH POTENTIAL TERMINALD OF SAID ELECTRICAL SOURCE FOR FOCUSING SAID PLASMA, AND ACCELERATING ELECTRODE MEANS IN SAID THRUST CHAMBER OPERATIVELY CONNECTED TO A LOW POTENTIAL TERMINAL OF SAID ELECTRICAL SOURCE FOR ACCELERATING SAID PLASMA, AND DECELERATING ELECTRODE MEANS IN SAID THRUST CHAMBER OPERATIVELY CONNECTED TO SAID LOW POTENTIAL TERMINAL OF SAID ELECTRICAL SOURCE FOR DECELERATING SAID PLASMA.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |