Patent US2639670A successfully refreshed from Google Patents.
US2639670A
Expired / Lapsed
US
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Liquid pump
Assignee: ECONOMY FAUCET Co
•
Filing: 1948-09-18
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Granted: 1953-05-26
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Expires: 1968-09-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Gordinier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:52
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/02; F04C2/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US839022A
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US858594A
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US1229676A
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CH108006A
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US1489416A
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US1501596A
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US1694783A
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FR656320A
Cited
US1984664A
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US2236660A
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US2351050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |