Patent US3145487A successfully refreshed from Google Patents.
Patent US3039775A successfully refreshed from Google Patents.
US3039775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chess game
Assignee: Individual
•
Filing: 1960-08-31
•
Granted: 1962-06-19
•
Expires: 1980-08-31
Abstract
No abstract record available.
Inventors
- 👤 Mangano John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:43
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US438653A
Cited
US2211868A
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US1857629A
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US2356057A
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US2394661A
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US2587381A
Cited
US2490649A
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US2592897A
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US2799505A
Cited
US2757934A
Cited
US2906333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |