Patent US673768A successfully refreshed from Google Patents.
US673768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crushing-roll.
Assignee: DARIUS GREEN MINING Co
•
Filing: 1900-06-09
•
Granted: 1901-05-07
•
Expires: 1920-06-09
Abstract
No abstract record available.
Inventors
- 👤 Charles R Fleming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:55
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/14; B02C18/142; Y; Y10; Y10S; Y10S241/00; Y10S241/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1904-05-06 | 1904-11-05 | 1905-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-05-06 | 1908-11-05 | 1909-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-05-06 | 1912-11-05 | 1913-05-07 | $7700.00 | Window Closed / Lapsed |