Patent US4311146A successfully refreshed from Google Patents.
US386173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
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Filing: —
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Granted: 1888-07-17
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Expires: 1905-07-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0027; B01D46/003; A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0023; A47L7/0028; B01D45/00; B01D45/04; B01D45/08
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) | 1891-07-17 | 1892-01-16 | 1892-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1895-07-17 | 1896-01-16 | 1896-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1899-07-17 | 1900-01-16 | 1900-07-18 | $7700.00 | Window Closed / Lapsed |