Patent US327646A successfully refreshed from Google Patents.
US327646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charles w
Assignee: —
•
Filing: —
•
Granted: 1885-10-06
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Expires: 1902-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:33
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/46; B01D24/4631; B01D24/007; B01D24/008; B01D24/02; B01D24/04; B01D35/00; B01D35/02
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) | 1888-10-05 | 1889-04-06 | 1889-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1892-10-05 | 1893-04-06 | 1893-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1896-10-05 | 1897-04-06 | 1897-10-06 | $7700.00 | Window Closed / Lapsed |