Patent US3304935A successfully refreshed from Google Patents.
US3304935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot vibrator
Assignee: KENNEDY Co
•
Filing: 1964-04-24
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Granted: 1967-02-21
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Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Delbert B Kennedy
- 👤 Marvin E Cannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:19
CPC Classifications
A; A61; A61H; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1431867A
Cited
US2153230A
Cited
US2235158A
Cited
US2562769A
Cited
US2521874A
Cited
US3043294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |