Patent US3009451A successfully refreshed from Google Patents.
US3009451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseball pitching robot
Assignee: Individual
•
Filing: 1957-03-13
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Granted: 1961-11-21
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Expires: 1977-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles J Zone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:48
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/40; A63B69/407; A63B69/408; A63B47/00; A63B47/002; A63B2047/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1162910A
Cited
US2294035A
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US2349892A
Cited
US2633397A
Cited
US2700379A
Cited
US2696204A
Cited
US2760679A
Cited
US2815743A
Cited
US2806461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |