Patent US3137504A successfully refreshed from Google Patents.
US3137504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Practice swing bat
Assignee: Individual
•
Filing: 1962-05-03
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Granted: 1964-06-16
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Expires: 1982-05-03
Abstract
No abstract record available.
Inventors
- 👤 Victor C Zordan
- 👤 Angelo L Menegus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:31
CPC Classifications
A; A63; A63B; A63B47/00; A63B24/00; A63B24/0062; A63B59/00; A63B59/50; A63B2024/0068; A63B2102/00; A63B2102/18; A63B2209/00; A63B2209/08; A63B2220/00; A63B2220/50; A63B2220/51; A63B60/00; A63B60/02; A63B60/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US514420A
Cited
US2135648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |