US2949306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Changeable game board
Assignee: Individual
•
Filing: 1959-02-03
•
Granted: 1960-08-16
•
Expires: 1979-02-03
Abstract
No abstract record available.
Inventors
- 👤 Martin D Gitelson
- 👤 Robert L Folstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:04
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/04; A63F3/0423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092583A
Cited
US2250093A
Cited
US2310711A
Cited
US2364814A
Cited
US2408270A
Cited
US2751228A
Cited
US2809467A
Cited
US2872215A
Cited
US2915842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |