US3053401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill pipe handling apparatus
Assignee: Individual
•
Filing: 1959-08-21
•
Granted: 1962-09-11
•
Expires: 1979-08-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Clarence J Jinkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:40
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/14; E21B19/15; E21B19/155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US742585A
Cited
US2535546A
Cited
US2631741A
Cited
US2743823A
Cited
US2748965A
Cited
GB779907A
Cited
US2852147A
Cited
US2900091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |