Patent US254189A successfully refreshed from Google Patents.
US254189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alexandee beelaetd
Assignee: —
•
Filing: —
•
Granted: 1882-02-28
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Expires: 1899-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:13
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/008; B01J8/0085; C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/08; C01B3/10; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36
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) | 1885-02-27 | 1885-08-29 | 1886-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1889-02-27 | 1889-08-29 | 1890-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1893-02-27 | 1893-08-29 | 1894-02-28 | $7700.00 | Window Closed / Lapsed |