US2601204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of lowering blood prothrombin level and lengthening clotting time with methylenebis-hydroxy coumarin
Assignee: Wisconsin Alumni Research Foundation
•
Filing: 1947-11-15
•
Granted: 1952-06-17
•
Expires: 1967-11-15
Abstract
No abstract record available.
Inventors
- 👤 Harold A Campbell
- 👤 Mark A Stahmann
- 👤 Charles F Huebner
- 👤 Link Karl Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:16
CPC Classifications
C; C07; C07D; C07D311/00; C07D311/02; C07D311/04; C07D311/42; A; A61; A61K; A61K31/00; A61K31/33; A61K31/335; A61K31/365; A61K31/366; A61K31/37
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |