US2548960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level gauge
Assignee: Elematic Equipment Corp
•
Filing: 1945-10-24
•
Granted: 1951-04-17
•
Expires: 1965-10-24
Abstract
No abstract record available.
Inventors
- 👤 Robert E Ekstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:47
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US668514A
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US1499384A
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US1624659A
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US1669460A
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US1909545A
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US1953819A
Cited
US1969784A
Cited
US1981354A
Cited
US2256473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |