US2946464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling stands of pipe
Assignee: Individual
•
Filing: 1956-07-11
•
Granted: 1960-07-26
•
Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 William C Guier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:47
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734718A
Cited
US2735556A
Cited
US2354217A
Cited
US2531930A
Cited
US2643005A
Cited
US2684166A
Cited
US2742260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |