Patent US2793636A successfully refreshed from Google Patents.
US2793636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball throwing machine
Assignee: Individual
•
Filing: 1953-03-03
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Granted: 1957-05-28
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Expires: 1973-03-03
Abstract
No abstract record available.
Inventors
- 👤 Jay E Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:01
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/40; A63B69/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313038A
Cited
US1316397A
Cited
US956117A
Cited
US1036627A
Cited
FR22110E
Cited
US1408137A
Cited
US1404378A
Cited
US2508461A
Cited
US2684062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |