US3784684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coronary dilator in a pharmaceutical dosage unit form
Assignee: Bayer AG
•
Filing: 1972-08-21
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Granted: 1974-01-08
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Expires: 1992-08-21
Abstract
Abstract AN INSTANT ORAL-RELEASE CAPSULE IS PRODUCED HAVING A SHELL OF GELATINE WHICH CONTAINS A MIXTURE OF (S) 1 PART BY WEIGHT OF 4-(2''-NITROPHENYL)-2,6-DIMETHYL3,5-DICARBOMETHOXY-1,4-DIHYDROPYRIDINE, (B)6 TO 50 PARTS BY WEIGHT OF AT LEAST ONE POLYALKYLENE GLYCOL OF 2 OR 3 CARBON ATOMS IN THE ALKYLENE MOIETY AND A MEAN MOLECULAR WEIGHT OF 200 TO 4000, AND (C) 0 TO 10 PARTS BY WEIGHT OF AT LEAST ONE ALCOHOL OF 2 TO 8 CARBON ATOMS AND 1, 2 OR 3 HYDROXY GROUPS.
Inventors
- 👤 F Bossert
- 👤 W Vater
- 👤 K Bauer
- 👤 K Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:49
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/44; A61K9/4841; A61K9/4858; A61P; A61P9/00; Y; Y10; Y10S; Y10S206/00; Y10S206/828
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |