US2624362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow valve for fluid lift pumps
Assignee: Individual
•
Filing: 1949-03-12
•
Granted: 1953-01-06
•
Expires: 1969-03-12
Abstract
No abstract record available.
Inventors
- 👤 Walter L Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:45
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; E; E21; E21B; E21B43/00; E21B43/12; E21B43/121; E21B43/122; E21B43/123; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/2934; Y10T137/7722; Y10T137/7781; Y10T137/7834; Y10T137/7835; Y10T137/7836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US486501A
Cited
US1203551A
Cited
US1038527A
Cited
US1147099A
Cited
US1767201A
Cited
US2307016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |