US3107672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus for cosmetic treatment of the skin
Assignee: Individual
•
Filing: 1959-05-18
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Granted: 1963-10-22
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Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Hofmann Walter Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:15
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0408; A61N1/0452; A61N1/0472; A61N1/18; A61N1/20; A61N1/30; A61N1/303
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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |