US3740432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vitamin complexes of niacinamide,riboflavin and sodium ascorbate
Assignee: F Hoffmann La Roche AG
•
Filing: 1971-02-16
•
Granted: 1973-06-19
•
Expires: 1991-02-16
Abstract
Abstract COMPLEXES OF NIACINAMIDE AND RIBOFLAVIN AS WELL AS NIACINAMIDE, RIBOFLAVIN AND SODIUM ASCORBATE ARE DESCRIBED. THESE COMPLEXES ARE HARD, FREE-FLOWING GRANULES WHICH CAN BE DIRECTLY COMPRESSED INTO TABLETS.
Inventors
- 👤 L Magid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:40
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/14; A61K9/16
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |