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US18011A
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US
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Assignee: —
•
Filing: —
•
Granted: 1857-08-18
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Expires: 1874-08-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:04
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/06; B21D5/08
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) | 1860-08-17 | 1861-02-16 | 1861-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1864-08-17 | 1865-02-16 | 1865-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1868-08-17 | 1869-02-16 | 1869-08-18 | $7700.00 | Window Closed / Lapsed |