Patent US2628567A successfully refreshed from Google Patents.
US2628567A
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US
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Reversible variable capacity fluid pump
Assignee: Houdaille Hershey Corp
•
Filing: 1946-12-12
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Granted: 1953-02-17
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Expires: 1966-12-12
Abstract
No abstract record available.
Inventors
- 👤 Lancey Warren H De
- 👤 Edwin E Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:22
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/10; F04C14/14; F04C14/18; F04C14/22; F04C14/223; F04C14/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1728321A
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US1779757A
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US1819689A
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US2107152A
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US2148561A
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GB489955A
Cited
US2151482A
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US2142275A
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GB544375A
Cited
US2433484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |