US11869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coknell
Assignee: —
•
Filing: —
•
Granted: 1854-10-31
•
Expires: 1871-10-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:11
CPC Classifications
B; B21; B21D; B21D53/00; B29; B29C; B29C35/00; B29C35/02
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) | 1857-10-30 | 1858-05-01 | 1858-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1861-10-30 | 1862-05-01 | 1862-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1865-10-30 | 1866-05-01 | 1866-10-31 | $7700.00 | Window Closed / Lapsed |