US3525223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermodynamic rocket process using alkali metal fuels in a two phase flow
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1968-03-29
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Granted: 1970-08-25
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Expires: 1988-03-29
Abstract
No abstract record available.
Inventors
- 👤 Reinhart Radebold
- 👤 Hermann Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:59
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/72; F02K7/00; F02K7/10; F02K7/18; F02K9/42; F02K9/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2874539A
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US3203171A
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US3071924A
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US3158993A
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US3254485A
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US3350887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |