US2638347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear motor racing game
Assignee: Individual
•
Filing: 1948-04-14
•
Granted: 1953-05-12
•
Expires: 1968-04-14
Abstract
No abstract record available.
Inventors
- 👤 Maggi Ernesto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1437549A
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US1780081A
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US1981672A
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US2180448A
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US2192620A
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US2230563A
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US2188619A
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US2218164A
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US2280000A
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US2500180A
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US2461088A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |