US15572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
John potter
Assignee: —
•
Filing: —
•
Granted: 1856-08-19
•
Expires: 1873-08-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:12
CPC Classifications
B; B27; B27F; B27F1/00; B27F1/02; B27F1/06; Y; Y10; Y10T; Y10T29/00; Y10T29/35
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) | 1859-08-19 | 1860-02-18 | 1860-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1863-08-19 | 1864-02-18 | 1864-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1867-08-19 | 1868-02-18 | 1868-08-19 | $7700.00 | Window Closed / Lapsed |