US3156090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion rocket
Assignee: Individual
•
Filing: 1961-09-18
•
Granted: 1964-11-10
•
Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Harold R Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:26
CPC Classifications
F; F03; F03H; F03H1/00; F03H1/0037; F03H1/0056
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
AN ELECTROSTATIC ION ROCKET ENGINE COMPRISING A CASING DEFINING AN ENGINE CHAMBER, AN ANNULAR ANODE WITHIN SAID CHAMBER, MEANS FOR FEEDING A PROPELLANT INTO SAID CHAMBER TOWARD SAID ANODE, A HEATED FILAMENT WITHIN SAID ANODE FOR BOMBARDING TRON VOLTS TO FORM IONS, MEANS FOR FORMING A MAGNETIC FIELD ABOUT SAID CASING THE WALLS THEREOF WITHOUT FIRST COLLIDING WITH PROPELLANT PARTICLES IN SAID CHAMBER, AND MEANS FOR ACCELERATING SAID IONS AWAY FROM SAID CASING.
References Cited (Backward Citations)
US1809115A
Cited
US2826708A
Cited
US3041824A
Cited
US2969475A
Cited
US2880337A
Cited
US3014154A
Cited
US3052088A
Cited
US3050652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |