US2706406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flowmeter
Assignee: Stanolind Oil and Gas Co
•
Filing: 1949-09-23
•
Granted: 1955-04-19
•
Expires: 1969-09-23
Abstract
No abstract record available.
Inventors
- 👤 Renic P Vincent
- 👤 Schaefer Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/10; G; G01; G01F; G01F1/00; G01F1/05; G01F1/10; G01F1/103
Claims Analysis
Total Claims: 0
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US2345770A
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US2382609A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-18 | 1958-10-18 | 1959-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-18 | 1962-10-18 | 1963-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-18 | 1966-10-18 | 1967-04-19 | $7700.00 | Window Closed / Lapsed |