Patent FR2561002A1 successfully refreshed from Google Patents.
US236755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1881-01-18
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Expires: 1898-01-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:31
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/20; E04F; E04F11/00; E04F11/18; E04F11/181
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) | 1884-01-18 | 1884-07-19 | 1885-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1888-01-18 | 1888-07-19 | 1889-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1892-01-18 | 1892-07-19 | 1893-01-18 | $7700.00 | Window Closed / Lapsed |