US2714084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enteric coated tablets and methods of making the same
Assignee: Individual
•
Filing: 1954-10-11
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Granted: 1955-07-26
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Expires: 1974-10-11
Abstract
No abstract record available.
Inventors
- 👤 Victor M Hermelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2886; A61K9/2806; A61K9/282
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A PHARMACEUTICAL TABLET COMPRISING A DRUG-CONTAINING COMPRESSED CORE, AN INITIALLY APPLIED COATING LAYER DISPOSED ENTIRELY AROUND THE SURFACE OF THE CORE, SAID INITIALLY APPLIED COATING LAYER CONTAINING FINELY PULVERIZED ANHYDROUS SILICA GEL, AND A SUBSEQUENTLY APPLIED COATING LAYER DISPOSED ENTIRELY AROUND THE OUTER SURFACE OF THE INITIALLY APPLIED COATING LAYER, SAID SUBSEQUENTLY APPLIED COATING LAYER BEING AN ENTERIC COATING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |