Patent US2563029A successfully refreshed from Google Patents.
US2563029A
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US
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Jacketed reaction nozzle with hollow spiral vanes for rocket motors
Assignee: DANIEL AND FLORENCE GUGGENHEIM
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Filing: 1949-12-10
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Granted: 1951-08-07
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Expires: 1969-12-10
Abstract
No abstract record available.
Inventors
- 👤 Esther C Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:17
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/62; F02K9/66; F05; F05D; F05D2250/00; F05D2250/10; F05D2250/15; F05D2250/20; F05D2250/25; Y; Y10; Y10S; Y10S60/00; Y10S60/915
Claims Analysis
Total Claims: 0
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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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |