Patent US3473808A successfully refreshed from Google Patents.
US3473808A
Expired / Lapsed
US
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Game apparatus comprising oppositely facing playing boards
Assignee: Individual
•
Filing: 1966-09-27
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Granted: 1969-10-21
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Expires: 1986-09-27
Abstract
No abstract record available.
Inventors
- 👤 Kenneth Frederick Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:47
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00643; A63F2003/00678; A63F2003/00687; A63F9/00; A63F9/24; A63F2009/2448; A63F2009/247; A63F2009/2472; A63F2009/2483; A63F2009/2492; A63F2009/2494
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE534452A
Cited
FR424211A
Cited
US2399811A
Cited
US2575269A
Cited
FR1173335A
Cited
US2905473A
Cited
FR1431792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |