US3012620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for sinking anchors for guy lines
Assignee: —
•
Filing: —
•
Granted: 1961-12-12
•
Expires: 1978-12-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:07
CPC Classifications
E; E21; E21B; E21B15/00; E21B15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US298625A
Cited
US1294154A
Cited
US1539908A
Cited
US1602375A
Cited
US1791185A
Cited
US1897434A
Cited
US2044878A
Cited
US2569528A
Cited
US2562276A
Cited
US2673712A
Cited
US2833518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |