Patent US2551806A successfully refreshed from Google Patents.
US2551806A
Expired / Lapsed
US
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Magnetic racing game device
Assignee: ERICK C CARLSON
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Filing: 1947-06-03
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Granted: 1951-05-08
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Expires: 1967-06-03
Abstract
No abstract record available.
Inventors
- 👤 Louis W Mckeever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:37
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/10; A63F; A63F9/00; A63F9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |