Patent US168570A successfully refreshed from Google Patents.
US168570A
Expired / Lapsed
US
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Improvement in game-boards
Assignee: —
•
Filing: —
•
Granted: 1875-10-11
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Expires: 1892-10-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:44
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00003; A63F3/00063
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) | 1878-10-10 | 1879-04-11 | 1879-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1882-10-10 | 1883-04-11 | 1883-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1886-10-10 | 1887-04-11 | 1887-10-11 | $7700.00 | Window Closed / Lapsed |