US2943141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic baseball umpire or the like
Assignee: Servo Corp of America
•
Filing: 1955-01-07
•
Granted: 1960-06-28
•
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
2026-10-23 14:09
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
Cited
US2250476A
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US2359032A
Cited
US2269862A
Cited
US2473893A
Cited
US2406266A
Cited
US2531831A
Cited
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 |