Patent US2664701A successfully refreshed from Google Patents.
US2664701A
Expired / Lapsed
US
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Combustion equipment of rocket motors
Assignee: Armstrong Siddeley Motors Ltd
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Filing: 1951-08-07
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Granted: 1954-01-05
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Expires: 1971-08-07
Abstract
No abstract record available.
Inventors
- 👤 Allen Sidney
- 👤 Edward G D Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:49
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/56; F02K9/566; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2557
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2341758A
Cited
US2446013A
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US2510571A
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US2508260A
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US2547959A
Cited
US2573724A
Cited
US2578501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |