US1124627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined drill-bit-holding chuck and front cylinder-head for rock-drilling engines.
Assignee: Individual
•
Filing: 1911-08-15
•
Granted: 1915-01-12
•
Expires: 1931-08-15
Abstract
No abstract record available.
Inventors
- 👤 John George Leyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:57
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/08; B25D17/084; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17042; Y10T279/17068
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) | 1918-01-11 | 1918-07-13 | 1919-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-01-11 | 1922-07-13 | 1923-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-01-11 | 1926-07-13 | 1927-01-12 | $7700.00 | Window Closed / Lapsed |