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US2943141A
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US
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Automatic baseball umpire or the like
Assignee: Servo Corp of America
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Filing: 1955-01-07
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Granted: 1960-06-28
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Expires: 1975-01-07
Abstract
No abstract record available.
Inventors
- 👤 Lloyd F Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:29
CPC Classifications
A; A63; A63B; A63B24/00; A63B24/0003; A63B71/00; A63B71/06; A63B71/0605; H; H04; H04N; H04N7/00; H04N7/18; H04N7/181; A63B2220/00; A63B2220/80; A63B2220/806; A63B2220/807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2113899A
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US2250476A
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US2359032A
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US2269862A
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US2473893A
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US2406266A
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US2531831A
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US2615088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |