US2675759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating pump
Assignee: —
•
Filing: —
•
Granted: 1954-04-20
•
Expires: 1971-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:18
CPC Classifications
F; F04; F04B; F04B23/00; F04B23/02; F04B23/021; F04B23/023; F04B17/00; F04B17/03; F04B49/00; F04B49/22; F04B49/24; F04B53/00; F04B53/10; F04B53/12; F04B53/125; F04B53/126; F04B9/00; F04B9/02; F04B9/04; F04B9/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1539556A
Cited
US1574772A
Cited
US1557436A
Cited
US1892196A
Cited
US1936526A
Cited
US1997860A
Cited
US1917690A
Cited
US2117819A
Cited
US2044064A
Cited
US2397042A
Cited
US2531794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |