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US360838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill for well-boring
Assignee: —
•
Filing: —
•
Granted: 1887-04-05
•
Expires: 1904-04-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:04
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/36; E21B10/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1890-04-04 | 1890-10-04 | 1891-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-04-04 | 1894-10-04 | 1895-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-04-04 | 1898-10-04 | 1899-04-05 | $7700.00 | Window Closed / Lapsed |