US798200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of removing solid or semisolid material from containers of pressure-filters.
Assignee: Individual
•
Filing: 1904-01-02
•
Granted: 1905-08-29
•
Expires: 1924-01-02
Abstract
No abstract record available.
Inventors
- 👤 Charles W Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:42
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11
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) | 1908-08-28 | 1909-02-27 | 1909-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-08-28 | 1913-02-27 | 1913-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-08-28 | 1917-02-27 | 1917-08-29 | $7700.00 | Window Closed / Lapsed |