US3632778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tablets containing l-dopa
Assignee: F Hoffmann La Roche AG
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Filing: 1970-06-10
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Granted: 1972-01-04
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Expires: 1990-06-10
Abstract
Abstract IMPROVED TABLETS CONTAINING L-DOPA AND A BINDER COMPRISING AMYLOPECTIN ADMIXED WITH, POLYVINYLPYRROLIDONE, A LUBRICANT AND A TABLET DISINTEGRANT ARE DESCRIBED.
Inventors
- 👤 Prabhakar Ranchhordas Sheth
- 👤 Gilbert Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:00
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/185; A61K31/19; A61K31/195; A61K9/00; A61K9/20; A61K9/2004
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |