US2687305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Checker game board
Assignee: Individual
•
Filing: 1951-10-13
•
Granted: 1954-08-24
•
Expires: 1971-10-13
Abstract
No abstract record available.
Inventors
- 👤 George F Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:43
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/0023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US947603A
Cited
US1343984A
Cited
US1441386A
Cited
US1595285A
Cited
US2235615A
Cited
US2399041A
Cited
US2437819A
Cited
US2628838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |