US2657008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine or like rotor
Assignee: Individual
•
Filing: 1948-07-29
•
Granted: 1953-10-27
•
Expires: 1968-07-29
Abstract
No abstract record available.
Inventors
- 👤 Atkinson Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:38
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/028; F01D5/08; F01D5/30; F01D5/3053; F01D5/3069; F01D5/3076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US764230A
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US874398A
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US906400A
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US1470497A
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US1362074A
Cited
GB319622A
Cited
US1959220A
Cited
US2401826A
Cited
US2354304A
Cited
US2428728A
Cited
US2435427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |