Patent US25184A successfully refreshed from Google Patents.
US25184A
Expired / Lapsed
US
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Improvement in writing-fluids
Assignee: —
•
Filing: —
•
Granted: 1859-08-23
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Expires: 1876-08-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:00
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/16; C09D11/18
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) | 1862-08-22 | 1863-02-21 | 1863-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1866-08-22 | 1867-02-21 | 1867-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1870-08-22 | 1871-02-21 | 1871-08-23 | $7700.00 | Window Closed / Lapsed |