US994668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bit for rock-drills, moils, and picks.
Assignee: Individual
•
Filing: 1908-09-14
•
Granted: 1911-06-06
•
Expires: 1928-09-14
Abstract
No abstract record available.
Inventors
- 👤 Wallace Childs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:28
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/46; E21B10/58; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T407/00; Y10T407/22; Y10T407/2272; Y10T407/2274
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) | 1914-06-05 | 1914-12-05 | 1915-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-06-05 | 1918-12-05 | 1919-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-06-05 | 1922-12-05 | 1923-06-06 | $7700.00 | Window Closed / Lapsed |