US3381683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facial mask with vibrating means
Assignee: Individual
•
Filing: 1965-06-21
•
Granted: 1968-05-07
•
Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Runde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:56
CPC Classifications
A; A61; A61H; A61H11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US494775A
Cited
US780616A
Cited
US2134640A
Cited
US2226609A
Cited
US2509519A
Cited
US2705952A
Cited
US2728339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |