Patent US4173204A successfully refreshed from Google Patents.
US257465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
John p
Assignee: —
•
Filing: —
•
Granted: 1882-05-09
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Expires: 1899-05-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:33
CPC Classifications
B; B23; B23Q; B23Q9/00; B23Q9/0064; B23Q9/0078; B23Q9/0085; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8742; Y10T83/8763; Y10T83/8798; Y10T83/8812
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) | 1885-05-08 | 1885-11-07 | 1886-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1889-05-08 | 1889-11-07 | 1890-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1893-05-08 | 1893-11-07 | 1894-05-09 | $7700.00 | Window Closed / Lapsed |