US3535929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the simultaneous determination of fluid flow over a long and a short time interval
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1967-07-12
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Granted: 1970-10-27
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Expires: 1987-07-12
Abstract
No abstract record available.
Inventors
- 👤 Lucien Mondeil
- 👤 Marc Fontimpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:51
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/07; G01F15/075; G01F15/0755; G01F1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2826068A
Cited
US2851882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |