US2650472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonating combustion power gas generator
Assignee: Sir WG Armstrong Whitworth and Co Engineers Ltd
•
Filing: 1945-12-11
•
Granted: 1953-09-01
•
Expires: 1965-12-11
Abstract
No abstract record available.
Inventors
- 👤 Mansfield Wilfred Percival
- 👤 White John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:01
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/04; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190727724A
Cited
FR412478A
Cited
US1021521A
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GB176838A
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FR626976A
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GB308595A
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GB386908A
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GB424955A
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US2102559A
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US2206193A
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US2167303A
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US2106427A
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US2207936A
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US2427845A
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US2480540A
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US2463820A
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US2425121A
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US2520751A
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US2503584A
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US2523379A
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US2546966A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |