US3481326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory hat for scalp massaging
Assignee: CHARLES H M SCHAMBLIN
•
Filing: 1967-04-24
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Granted: 1969-12-02
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Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Charles H M Schamblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:46
CPC Classifications
A; A61; A61H; A61H7/00; A61H7/006; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1604; A61H2201/1607; A61H2201/165; A61H2205/00; A61H2205/02; A61H2205/021; Y; Y10; Y10S; Y10S601/00; Y10S601/14; Y10S601/15; Y10S601/16
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |