US3406974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Game board with magnets and game pieces with magnetically actuated pointer elements
Assignee: Individual
•
Filing: 1965-04-15
•
Granted: 1968-10-22
•
Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 William D Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:33
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00694; A63F3/00697; A63F2003/00826; A63F2250/00; A63F2250/18; A63F2250/186; A63F3/00003; A63F3/00006; A63H; A63H13/00; A63H13/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1315483A
Cited
US1505071A
Cited
US1888980A
Cited
GB428318A
Cited
US2081020A
Cited
US2185556A
Cited
US2263735A
Cited
US2295452A
Cited
US2619349A
Cited
DE878619C
Cited
US2809835A
Cited
FR1263417A
Cited
FR1298367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |