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US2699675A
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Two-conductor system for measuring rate and direction of flow and conductivity of fluid in a passage
Assignee: ExxonMobil Oil Corp
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Filing: 1950-03-06
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Granted: 1955-01-18
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Expires: 1970-03-06
Abstract
No abstract record available.
Inventors
- 👤 Julian R Buck
- 👤 John C Petree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/68; E; E21; E21B; E21B47/00; E21B47/10; E21B47/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2517455A
Cited
US2580182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |