US2451022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color changing antiseptic composition
Assignee: Individual
•
Filing: 1944-02-28
•
Granted: 1948-10-12
•
Expires: 1964-02-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Dohrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:51
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US871612A
Cited
GB190511601A
Cited
US1335488A
Cited
US1623510A
Cited
US1690760A
Cited
US1761411A
Cited
US2063575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |