US3459850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sustained-release tablets,a process and a composition for their preparation
Assignee: Wander AG
•
Filing: 1965-08-26
•
Granted: 1969-08-05
•
Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Aldo Riva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:54
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2072; A61K9/2086; A61K9/209; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; A61K31/519; A61K31/52; A61K9/2004; A61K9/2022; A61K9/2027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2793979A
Cited
US2805977A
Cited
US2875130A
Cited
US3184386A
Cited
US3065143A
Cited
US3074852A
Cited
US3346449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |