US3370657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizer and deflecting tool
Assignee: Trudril Inc
•
Filing: 1965-10-24
•
Granted: 1968-02-27
•
Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Wade H Antle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:31
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1014; E21B17/1021; E21B7/00; E21B7/04; E21B7/06; E21B7/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1406350A
Cited
US2119095A
Cited
US2645459A
Cited
US2915286A
Cited
US2891769A
Cited
US3196959A
Cited
US3298449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |