Patent US2357228A successfully refreshed from Google Patents.
US2357228A
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US
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Hydraulic turbine
Assignee: English Electric Co Ltd
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Filing: 1942-03-13
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Granted: 1944-08-29
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Expires: 1962-03-13
Abstract
No abstract record available.
Inventors
- 👤 Seewer Paul Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:53
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/0055; F03; F03B; F03B3/00; F03B3/12; F03B3/14; F03B3/145; F05; F05B; F05B2260/00; F05B2260/40; F05B2260/406; F05B2260/70; F05B2260/76; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-08-29 | 1948-02-28 | 1948-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-29 | 1952-02-28 | 1952-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-29 | 1956-02-28 | 1956-08-29 | $7700.00 | Window Closed / Lapsed |