US3584114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-flowing powders
Assignee: F Hoffmann La Roche AG
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Filing: 1968-05-22
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Granted: 1971-06-08
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Expires: 1988-05-22
Abstract
Abstract THERE ARE DISCLOSED METHODS FOR PRODUCING FREE FLOWING, DIRECTLY COMPRESSIBLE COMPOSITIONS FROM POOR FLOWING POWDERS BY MIXING THE POOR FLOWING POWDERS INTO MELTED WAXY-LIKE EDIBLE MATERIALS SUCH AS STEARIC ACID, CARBOWAX, GLYCERYL MONOSTEARATE AND THE LIKE. THE THUS PRODUCED COMPOSITIONS CAN, IF DESIRED, BE COVERTED INTO TABLETS WITH EXCELLENT PROPERITIES BY DIRECT COMPRESSION.
Inventors
- 👤 Arnold Cavalli
- 👤 Leon Drekter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:17
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/14; A61K9/16; A23; A23P; A23P10/00; A23P10/20; A23P10/28; A23P30/00; A23P30/10; A61K9/20; A61K9/2004; A61K9/2013; A61K9/2095
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |