US801204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for treating coal, ores, and other minerals for draining them of water.
Assignee: Individual
•
Filing: 1904-02-23
•
Granted: 1905-10-10
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Expires: 1924-02-23
Abstract
No abstract record available.
Inventors
- 👤 Fritz Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:11
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/04
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) | 1908-10-09 | 1909-04-10 | 1909-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-10-09 | 1913-04-10 | 1913-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-10-09 | 1917-04-10 | 1917-10-10 | $7700.00 | Window Closed / Lapsed |