US3361200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment and method for servicing submarine oil wells
Assignee: Individual
•
Filing: 1965-03-01
•
Granted: 1968-01-02
•
Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Lawrence S Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:14
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/068; E21B33/076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1664643A
Cited
US2676787A
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US3025912A
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US3101798A
Cited
US3020956A
Cited
US3041090A
Cited
US3062287A
Cited
US3239004A
Cited
US3219119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |