Patent EP0805074A1 successfully refreshed from Google Patents.
Patent US4098014A successfully refreshed from Google Patents.
Patent US3668A successfully refreshed from Google Patents.
US3668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Samuel nicolson
Assignee: —
•
Filing: —
•
Granted: 1844-07-16
•
Expires: 1861-07-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:28
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/08; B63B35/12
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) | 1847-07-16 | 1848-01-15 | 1848-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1851-07-16 | 1852-01-15 | 1852-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1855-07-16 | 1856-01-15 | 1856-07-16 | $7700.00 | Window Closed / Lapsed |