US3306045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioisotope rocket
Assignee: Marquardt Corp
•
Filing: 1963-12-19
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Granted: 1967-02-28
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Buford
- 👤 Jr Arthur N Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:42
CPC Classifications
G; G21; G21D; G21D5/00; G21D5/02; Y; Y02; Y02E; Y02E30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A RADIOISOTOPE ROCKET COMPRISING: A CASING CONSTITUTED TO INSULATING MATERIAL; A FUEL ELEMENT LOCATED WITHIN SAID CASING TO PROVIDE A SOURCE OF GAMMA RADIATION; A PLURALITY OF HEATING ELEMENTS LOCATED WITHIN SAID CASING FOR RECEIVING RADIATION FROM SAID FUEL ELEMENT IN ORDER TO MAINTAIN SAID HEATING ELEMENTS AT AN ELEVATED TEMPERATURE HIGHER THAN THE TEMPERATURE OF SAID FUEL ELEMENT; SAID FUEL ELEMENT AND HEATING ELEMENTS BEING SPACED APART TO FROM A FLOW PATH OVER SAID FUEL AND HEATING ELEMENTS FOR A WORKING FLUID;
Claim 2
Dependent Claim
83 words
A RADIOISOTOPE ROCKET COMPRISING: A CASING CONSTITUTED TO INSULATING MATERIAL; A FUEL ELEMENT LOCATED WITHIN SAID CASING TO PROVIDE A SOURCE OF GAMMA RADIATION; A PLURALITY OF HEATING ELEMENTS LOCATED WITHIN SAID CASING FOR RECEIVING RADIATION FROM SAID FUEL ELEMENT IN ORDER TO MAINTAIN SAID HEATING ELEMENTS AT AN ELEVATED TEMPERATURE HIGHER THAN THE TEMPERATURE OF SAID FUEL ELEMENT; SAID FUEL ELEMENT AND HEATING ELEMENTS BEING SPACED APART TO FROM A FLOW PATH OVER SAID FUEL AND HEATING ELEMENTS FOR A WORKING FLUID;
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |