Patent US2925248A successfully refreshed from Google Patents.
US2925248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bladed wheels for axial flow machines
Assignee: Stalker Corp
•
Filing: 1953-05-22
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Granted: 1960-02-16
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Expires: 1973-05-22
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:58
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/021; F01D5/30; F01D5/3076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US541000A
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US874398A
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US1545495A
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GB492801A
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US2436087A
Cited
US2637488A
Cited
US2604298A
Cited
US2537739A
Cited
GB623710A
Cited
US2649278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |