Patent US2551023A successfully refreshed from Google Patents.
US2551023A
Expired / Lapsed
US
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Ball transfer mechanism for ball games
Assignee: Individual
•
Filing: 1947-04-05
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Granted: 1951-05-01
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Expires: 1967-04-05
Abstract
No abstract record available.
Inventors
- 👤 David D Levitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:23
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/32; G07F17/3286; G07F17/3297
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313783A
Cited
US1788323A
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US2054616A
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US2051229A
Cited
US2127261A
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US2136060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |