US3013583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow stabilizer for oil wells
Assignee: Individual
•
Filing: 1956-06-11
•
Granted: 1961-12-19
•
Expires: 1976-06-11
Abstract
No abstract record available.
Inventors
- 👤 George C Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US644171A
Cited
US1232456A
Cited
US2020412A
Cited
US2342904A
Cited
US2462929A
Cited
US2665644A
Cited
US2748802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |