Patent US2591742A successfully refreshed from Google Patents.
US2591742A
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Enteric medicament
Assignee: THOMAS
•
Filing: 1949-11-22
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Granted: 1952-04-08
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Expires: 1969-11-22
Abstract
No abstract record available.
Inventors
- 👤 Charles C H Thomas
- 👤 Leonard E Edelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:45
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/18; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1652; A61K9/20; A61K9/2004; A61K9/2022; A61K9/205; A61K9/2054; A61K9/28; A61K9/2806; A61K9/2833; A61K9/286; A61K9/2866; A61K9/48; A61K9/50; A61K9/5005; A61K9/5021; A61K9/5036; A61K9/5042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A FINELY-DIVIDED SOLID SUBSTANCE FOR INTERNAL MEDICATION ENVELOPED IN A COATING OF SODIUM CARBOXYMETHYLCELLULOSE, THE SODIUM CARBOXYMETHYLCELLULOSE HAVING A SURFACE FILM OF CELLULOSIC ACID THEREOVER.
Claim 2
Dependent Claim
25 words
A FINELY-DIVIDED SOLID SUBSTANCE FOR INTERNAL MEDICATION ENVELOPED IN A COATING OF SODIUM CARBOXYMETHYLCELLULOSE, THE SODIUM CARBOXYMETHYLCELLULOSE HAVING A SURFACE FILM OF CELLULOSIC ACID THEREOVER.
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) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |