Patent US2590730A successfully refreshed from Google Patents.
US2590730A
Expired / Lapsed
US
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Blade driven rotary pump
Assignee: SCOGNAMILLO ENGINEERING Co
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Filing: 1948-12-18
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Granted: 1952-03-25
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Expires: 1968-12-18
Abstract
No abstract record available.
Inventors
- 👤 Scognamillo Salvatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:52
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599778A
Cited
US1671399A
Cited
US1635523A
Cited
US2049092A
Cited
GB441339A
Cited
US2324434A
Cited
US2433994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |