US3248130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for running and hanging tubing in a well
Assignee: Individual
•
Filing: 1965-04-02
•
Granted: 1966-04-26
•
Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Warner P Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:52
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1557915A
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US1849374A
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US2075899A
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US2103586A
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US2905099A
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US2780291A
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US3011804A
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US3080180A
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US3041090A
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |