Patent US3379262A successfully refreshed from Google Patents.
US3379262A
Expired / Lapsed
US
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Stepped termination for sonic casing drive
Assignee: Individual
•
Filing: 1965-12-23
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Granted: 1968-04-23
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert G Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:34
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/18; E21; E21B; E21B7/00; E21B7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1018333A
Cited
US1062647A
Cited
US1223098A
Cited
US1727222A
Cited
US2975846A
Cited
US3054463A
Cited
US3187513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |