Patent US357897A successfully refreshed from Google Patents.
US357897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1887-02-15
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Expires: 1904-02-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:22
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01
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) | 1890-02-14 | 1890-08-16 | 1891-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-02-14 | 1894-08-16 | 1895-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-02-14 | 1898-08-16 | 1899-02-15 | $7700.00 | Window Closed / Lapsed |