US2716973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball throwing machine
Assignee: Individual
•
Filing: 1952-09-04
•
Granted: 1955-09-06
•
Expires: 1972-09-04
Abstract
No abstract record available.
Inventors
- 👤 Desi Paul Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:29
CPC Classifications
A; A47; A47H; A47H13/00; A47H13/04; A63; A63B; A63B69/00; A63B69/40; A63B69/406; A63B2225/00; A63B2225/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1152447A
Cited
US1204468A
Cited
US1287197A
Cited
US1487973A
Cited
US2112611A
Cited
US2199009A
Cited
US2316798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |