US23545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fkancis h
Assignee: —
•
Filing: —
•
Granted: 1859-04-12
•
Expires: 1876-04-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
F; F41; F41A; F41A19/00; F41A19/06; F41A19/10; F41A19/14; F41C; F41C9/00; F41C9/08; F41C9/085
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) | 1862-04-11 | 1862-10-11 | 1863-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1866-04-11 | 1866-10-11 | 1867-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1870-04-11 | 1870-10-11 | 1871-04-12 | $7700.00 | Window Closed / Lapsed |