US8201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved arrangement of the steam-engine
Assignee: —
•
Filing: —
•
Granted: 1851-07-01
•
Expires: 1868-07-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:41
CPC Classifications
F; F01; F01L; F01L21/00; A; A01; A01G; A01G25/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1854-06-30 | 1854-12-30 | 1855-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1858-06-30 | 1858-12-30 | 1859-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1862-06-30 | 1862-12-30 | 1863-07-01 | $7700.00 | Window Closed / Lapsed |