Patent US2636383A successfully refreshed from Google Patents.
US2636383A
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US
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Well bore measuring and fluid metering device
Assignee: Phillips Petroleum Co
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Filing: 1948-01-23
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Granted: 1953-04-28
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Expires: 1968-01-23
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R More
- 👤 Jr Walter G Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:18
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/06; E; E21; E21B; E21B47/00; E21B47/10; G01F1/075
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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |