US2617302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for gauging the water level in the bottom of hydrocarbon tanks and the like
Assignee: Compagnie Francaise de Raffinage SA
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Filing: 1948-01-17
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Granted: 1952-11-11
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Expires: 1968-01-17
Abstract
No abstract record available.
Inventors
- 👤 Massiot Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:36
CPC Classifications
G; G01; G01F; G01F23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |