Patent US2434778A successfully refreshed from Google Patents.
US2434778A
Expired / Lapsed
US
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Power plant
Assignee: English Electric Co Ltd
•
Filing: 1944-07-24
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Granted: 1948-01-20
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Expires: 1964-07-24
Abstract
No abstract record available.
Inventors
- 👤 Welsh Robert James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:43
CPC Classifications
F; F02; F02B; F02B71/00; Y; Y10; Y10S; Y10S60/00; Y10S60/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1666630A
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US2147935A
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US2200892A
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US2077802A
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US2306978A
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US2260252A
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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) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |