US2561227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triple capacity plunger pump
Assignee: Individual
•
Filing: 1949-06-01
•
Granted: 1951-07-17
•
Expires: 1969-06-01
Abstract
No abstract record available.
Inventors
- 👤 Wade R Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:48
CPC Classifications
F; F04; F04B; F04B5/00; F04B49/00; F04B49/18; F04B1/00; F04B1/04; F04B1/06; F04B15/00; F04B15/04; F04B53/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1263401A
Cited
US1598137A
Cited
US2083854A
Cited
US2256099A
Cited
US2239853A
Cited
US2434296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |