Patent US3857389A successfully refreshed from Google Patents.
Patent US4651739A successfully refreshed from Google Patents.
US367974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fbancis o
Assignee: —
•
Filing: —
•
Granted: 1887-08-09
•
Expires: 1904-08-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:44
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02
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) | 1890-08-08 | 1891-02-07 | 1891-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-08-08 | 1895-02-07 | 1895-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-08-08 | 1899-02-07 | 1899-08-09 | $7700.00 | Window Closed / Lapsed |