Patent US3346893A successfully refreshed from Google Patents.
Patent US2444952A successfully refreshed from Google Patents.
US2444952A
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Pump control mechanism
Assignee: Joy Manufacturing Co
•
Filing: 1945-04-11
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Granted: 1948-07-13
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Expires: 1965-04-11
Abstract
No abstract record available.
Inventors
- 👤 Win W Paget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:23
CPC Classifications
F; F04; F04C; F04C28/00; F04C28/24; F04C28/08; F04C29/00; F04C29/0042; F04C29/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1110864A
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US1097259A
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US2002057A
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US2276371A
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US2316237A
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US2284984A
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US2316416A
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US2309064A
Cited
US2385664A
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US2377199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |