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US513320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coal-drill
Assignee: —
•
Filing: —
•
Granted: 1894-01-23
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Expires: 1911-01-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:00
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/32; Y; Y10; Y10T; Y10T74/00; Y10T74/17; Y10T74/173
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) | 1897-01-22 | 1897-07-24 | 1898-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-01-23 | 1901-07-25 | 1902-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-01-23 | 1905-07-25 | 1906-01-24 | $7700.00 | Window Closed / Lapsed |