US21255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
harrison
Assignee: —
•
Filing: —
•
Granted: 1858-08-24
•
Expires: 1875-08-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:22
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609; Y10T29/49611
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) | 1861-08-23 | 1862-02-22 | 1862-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1865-08-23 | 1866-02-22 | 1866-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1869-08-23 | 1870-02-22 | 1870-08-24 | $7700.00 | Window Closed / Lapsed |