Patent US3421759A successfully refreshed from Google Patents.
US3421759A
Expired / Lapsed
US
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Resilient membered judo training device
Assignee: Individual
•
Filing: 1965-10-19
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Granted: 1969-01-14
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 John E Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:33
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/20; A63B69/28; A63B69/30; A63B69/215; A63B69/34; A63B2244/00; A63B2244/10; A63B2244/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |