US2433244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enteric coating
Assignee: Parke Davis and Co LLC
•
Filing: 1944-08-28
•
Granted: 1947-12-23
•
Expires: 1964-08-28
Abstract
No abstract record available.
Inventors
- 👤 Springett Thurston Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/282; A61K9/2833; A61K9/286; A61K9/2866
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2196768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |