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Patent US3508753A successfully refreshed from Google Patents.
US3508753A
Expired / Lapsed
US
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Naval game apparatus with multiple illuminated playing surfaces
Assignee: ELVIN I HOEL
•
Filing: 1967-08-28
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Granted: 1970-04-28
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Expires: 1987-08-28
Abstract
No abstract record available.
Inventors
- 👤 Steven A Mackey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:11
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00643; A63F3/00003; A63F3/00075; A63F2003/00646; A63F2003/00649
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE291442C
Cited
US611545A
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GB102865A
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US1771851A
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US2081020A
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US2105563A
Cited
US2356057A
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US2799505A
Cited
US2808263A
Cited
US3018107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |