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US3464701A
Expired / Lapsed
US
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Game apparatus for playing threedimensional chess and tic-tac-toe
Assignee: SCH CORP
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Filing: 1966-12-06
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Granted: 1969-09-02
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Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Michael Mahoney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:36
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/00214; A63F3/00003; A63F3/00094; A63F2003/00217; A63F3/00261; A63F2003/00324; A63F2003/00331; A63F2003/00334; A63F2003/00337
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1474504A
Cited
FR608196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |