US1892389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for permanently waving hair
Assignee: ZOTOS Corp
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Filing: 1932-11-10
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Granted: 1932-12-27
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Expires: 1952-11-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:20
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A45; A45D; A45D7/00; A45D7/06; A45D7/065; A61Q; A61Q5/00; A61Q5/04; C; C09; C09K; C09K5/00; C09K5/16; A61K2800/00; A61K2800/20; A61K2800/24; A61K2800/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-12-27 | 1936-06-27 | 1936-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-12-27 | 1940-06-27 | 1940-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-12-27 | 1944-06-27 | 1944-12-27 | $7700.00 | Window Closed / Lapsed |