US3275518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tablet coating
Assignee: Abbott Laboratories
•
Filing: 1963-04-18
•
Granted: 1966-09-27
•
Expires: 1983-04-18
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Endicott
- 👤 William T Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:18
CPC Classifications
C; C08; C08L; C08L57/00; A; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/282; A61K9/2833; A61K9/284; A61K9/2846; A61K9/2853; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD OF COATING TABLETS SUITABLE FOR ORAL ADMINISTRATION WICH COMPRISES APPLYING TO A TABLET A THERAPEUTICALLY ACCEPTABLE COATING COMPOSTION WHICH READILY DISINTEGRATES IN SIMULATED GASTRIC AND INTESTINAL FLUIDS CONSISTING ESSENTIALY OF (A) A FILM-FORMING MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLY(METHYLSTYRENE),METHYLSTYRENEACRYLONITRILE COPOLYMERS, VINYL BUTYRAL, POLY(VINYLCHLORIDE), PENTAERYTHRITOL AND ALKYLD ESTERS OF ROSIN, PENTAERYTHRITOL ESTERS OF MODIFIED ROSINS AND TERPENEBASED ALKYLD RESINS, AND (B) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF GLYCERYL MONOSTEARATE, DIGLYCOL STEARATE AND A POLYLETHYLENE GLYCOL) HAVNG A MELTING POINT OF AT LEAST 45*C.
Claim 2
Independent Claim
88 words
A METHOD OF COATING TABLETS SUITABLE FOR ORAL ADMINISTRATION WICH COMPRISES APPLYING TO A TABLET A THERAPEUTICALLY ACCEPTABLE COATING COMPOSTION WHICH READILY DISINTEGRATES IN SIMULATED GASTRIC AND INTESTINAL FLUIDS CONSISTING ESSENTIALY OF (A) A FILM-FORMING MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLY(METHYLSTYRENE),METHYLSTYRENEACRYLONITRILE COPOLYMERS, VINYL BUTYRAL, POLY(VINYLCHLORIDE), PENTAERYTHRITOL AND ALKYLD ESTERS OF ROSIN, PENTAERYTHRITOL ESTERS OF MODIFIED ROSINS AND TERPENEBASED ALKYLD RESINS, AND (B) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF GLYCERYL MONOSTEARATE, DIGLYCOL STEARATE AND A POLYLETHYLENE GLYCOL) HAVNG A MELTING POINT OF AT LEAST 45*C.
References Cited (Backward Citations)
US2085490A
Cited
US2385920A
Cited
US2353927A
Cited
US2444871A
Cited
US2519775A
Cited
US2468393A
Cited
US2702264A
Cited
GB762229A
Cited
US2881085A
Cited
GB764342A
Cited
US3070509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |