US2508290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric liquid level gauge
Assignee: Stewart Warner Corp
•
Filing: 1946-03-08
•
Granted: 1950-05-16
•
Expires: 1966-03-08
Abstract
No abstract record available.
Inventors
- 👤 William C Poetsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:17
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/32; G01F23/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1607512A
Cited
US1616529A
Cited
US1634165A
Cited
US1678115A
Cited
US1810818A
Cited
US1820369A
Cited
US1902933A
Cited
US2266298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |