US3471624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a cosmetic formulation useful as a facial mask
Assignee: ELIZABETH Y YOUNGBLOOD
•
Filing: 1966-11-08
•
Granted: 1969-10-07
•
Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth Y Youngblood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/0212; A61K8/18; A61K8/19; A61K8/23; A61K8/26; A61Q; A61Q19/00; A61Q19/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |