Patent US3575946A successfully refreshed from Google Patents.
Patent US1765844A successfully refreshed from Google Patents.
Patent US2887438A successfully refreshed from Google Patents.
US2887438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prolonged action tablets
Assignee: CIBA PHARM PROD Inc
•
Filing: 1956-03-27
•
Granted: 1959-05-19
•
Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Cooper Jack
- 👤 Windheuser John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:37
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2072; A61K9/2086; A61K9/209; A61K9/2004; A61K9/2013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A LONG-ACTING ORALLY ADMINISTRABLE DOSAGE UNIT FORM COMPRISING AN INNER CORE HAVING A THERAPEUTICALLY ACTIVE SUBSTACNE INTIMATELY INTERPERSED THROUGHOUT A WAXY MATERIAL SELECTED FROM THE GROUP CONSISTING OF WAXES, SOLID ALCOHOLS AND MIXTURES THEREOF, AND AN OUTER COATING COMPRESED ONTO SAID WAXY SUBSTANCE COMPRISING A STANDARD GRANULATION MIXTURE CONTAINING A THERAPEUTICALLY ACTIVE SUBSTANCE, EXCIPIENTS AND BINDERS.
Claim 2
Dependent Claim
56 words
A LONG-ACTING ORALLY ADMINISTRABLE DOSAGE UNIT FORM COMPRISING AN INNER CORE HAVING A THERAPEUTICALLY ACTIVE SUBSTACNE INTIMATELY INTERPERSED THROUGHOUT A WAXY MATERIAL SELECTED FROM THE GROUP CONSISTING OF WAXES, SOLID ALCOHOLS AND MIXTURES THEREOF, AND AN OUTER COATING COMPRESED ONTO SAID WAXY SUBSTANCE COMPRISING A STANDARD GRANULATION MIXTURE CONTAINING A THERAPEUTICALLY ACTIVE SUBSTANCE, EXCIPIENTS AND BINDERS.
References Cited (Backward Citations)
USRE24090E
Cited
GB514047A
Cited
US2413419A
Cited
US2757124A
Cited
US2738303A
Cited
US2793979A
Cited
US2736682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |