US3446986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow indicator and control system
Assignee: Mobil Oil AS
•
Filing: 1966-11-28
•
Granted: 1969-05-27
•
Expires: 1986-11-28
Abstract
No abstract record available.
Inventors
- 👤 John B Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:06
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/0006; G01P13/0013; G01P13/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2406099A
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US2419942A
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US2433208A
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US2628297A
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US2791657A
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US2853575A
Cited
US2927175A
Cited
US3057977A
Cited
US3247499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |