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Patent US2453266A successfully refreshed from Google Patents.
US2453266A
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Piston pump
Assignee: LA PLANT-CHOATE Manufacturing Co Inc
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Filing: 1945-02-09
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Granted: 1948-11-09
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Expires: 1965-02-09
Abstract
No abstract record available.
Inventors
- 👤 Harvey W Rockwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:05
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2042; F04B1/205; F04B1/2035; F04B1/2064; F04B1/2071; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/106; F04B23/14; F04B49/00; F04B49/22; F04B49/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1978480A
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US1971601A
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US2129886A
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US2299233A
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US2300009A
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US2392543A
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US2331694A
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US2295833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |