US3458622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled release tablet
Assignee: ER Squibb and Sons LLC
•
Filing: 1967-04-07
•
Granted: 1969-07-29
•
Expires: 1987-04-07
Abstract
No abstract record available.
Inventors
- 👤 John A Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:53
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3096248A
Cited
US3065143A
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US3074852A
Cited
US3158538A
Cited
US3328256A
Cited
US3362881A
Cited
US3346449A
Cited
US3330729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |