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US2605957A
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Pumping apparatus
Assignee: Individual
•
Filing: 1945-06-20
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Granted: 1952-08-05
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Expires: 1965-06-20
Abstract
No abstract record available.
Inventors
- 👤 Junius W Houston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:55
CPC Classifications
F; F04; F04B; F04B45/00; F04B45/04; F04B39/00; F04B39/10; F04B39/1073; F16; F16K; F16K15/00; F16K15/14; F16K15/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1339563A
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US2104446A
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US1982966A
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US1895602A
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US1976098A
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US2063728A
Cited
US2042510A
Cited
US2117863A
Cited
US2256345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |