US842049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic drill.
Assignee: Individual
•
Filing: 1906-06-22
•
Granted: 1907-01-22
•
Expires: 1926-06-22
Abstract
No abstract record available.
Inventors
- 👤 Waclaw Wolski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:52
CPC Classifications
E; E21; E21B; E21B4/00; E21B4/06; E21B4/14; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869
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) | 1910-01-21 | 1910-07-23 | 1911-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-01-21 | 1914-07-23 | 1915-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-01-21 | 1918-07-23 | 1919-01-22 | $7700.00 | Window Closed / Lapsed |