US2440593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial vane pump mechanism
Assignee: Individual
•
Filing: 1946-10-23
•
Granted: 1948-04-27
•
Expires: 1966-10-23
Abstract
No abstract record available.
Inventors
- 👤 Harry B Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:43
CPC Classifications
F; F04; F04C; F04C18/00; F04C18/30; F04C18/32; F04C18/324; F04C18/02; F04C18/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1441344A
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US1489077A
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US1780338A
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GB394263A
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US2246278A
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US2246275A
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GB512250A
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US2246271A
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US2415011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |