US3456049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gradual-release tablet
Assignee: BASF Corp
•
Filing: 1966-02-07
•
Granted: 1969-07-15
•
Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Edward Alexander Hotko
- 👤 Leon Lachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:45
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/54; A61K33/00; A61K9/00; A61K9/20; A61K9/2004; A61K9/2013; A61K9/2022; A61K9/205; A61K9/2054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2793979A
Cited
US2805977A
Cited
US2991226A
Cited
US3079303A
Cited
US3062720A
Cited
US3065143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |