US1811809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverulent preparation for the production of alpha rinsing liquid for the after treatment of washed animal fibers, woolen or silken fabrics, and especially the hair of the head
Assignee: Individual
•
Filing: 1930-07-17
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Granted: 1931-06-23
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Expires: 1950-07-17
Abstract
No abstract record available.
Inventors
- 👤 Schwarzkopf Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:12
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/26; C11D7/265; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/36; A61K8/365; A61K8/368; A61Q; A61Q5/00
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) | 1934-06-22 | 1934-12-22 | 1935-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-22 | 1938-12-22 | 1939-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-22 | 1942-12-22 | 1943-06-23 | $7700.00 | Window Closed / Lapsed |