US4892766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capsules
Assignee: Shionogi Europe BV
•
Filing: 1988-09-08
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Granted: 1990-01-09
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Expires: 2008-09-08
Abstract
Abstract Hard gelatin capsules are made from gelatin containing up to 10% of a preferably hydrophilic fibrous material. They do not split after storage when filled with hygroscopic or deliquescent materials.
Inventors
- 👤 Brian E. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:19
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K9/4816; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1372; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249997; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31772
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
38 words
A two-piece hard capsule shell having improved embrittlement properties comprising an admixture of gelatin and a pharmaceutically or veterinary acceptable hydrophilic fibrous material, wherein the fibres in the fibrous material have lengths of up to about 1000 microns.
Claim 2
Dependent Claim
38 words
A two-piece hard capsule shell having improved embrittlement properties comprising an admixture of gelatin and a pharmaceutically or veterinary acceptable hydrophilic fibrous material, wherein the fibres in the fibrous material have lengths of up to about 1000 microns.
Claim 3
Dependent Claim
18 words
A capsule shell of claim 1 wherein the fibrous material comprises up to about 10% of the admixture.
Claim 4
Dependent Claim
20 words
A capsule shell of claim 2 wherein the fibrous material comprises from about 0.5% to about 2.0% of the admixture.
Claim 5
Dependent Claim
14 words
A capsule shell of claim 1 wherein the fibrous material is cross-linked carboxymethylcellulose sodium.
Claim 6
Dependent Claim
14 words
A capsule shell of claim 2 wherein the fibrous material is cross-linked carboxymethylcellulose sodium.
Claim 7
Dependent Claim
21 words
A capsule shell of claim 1 wherein the lengths of the fibres are from about 50 microns to about 300 microns.
Claim 8
Dependent Claim
21 words
A capsule shell of claim 2 wherein the lengths of the fibres are from about 50 microns to about 300 microns.
Claim 9
Dependent Claim
21 words
A capsule shell of claim 1 wherein the lengths of the fibres are from about 50 microns to about 300 microns.
Claim 10
Dependent Claim
21 words
A capsule shell of claim 2 wherein the lengths of the fibres are from about 50 microns to about 300 microns.
Claim 11
Dependent Claim
21 words
A capsule shell of claim 5 wherein the lengths of the fibres are from about 50 microns to about 300 microns.
Claim 12
Dependent Claim
32 words
A capsule shell of claim 3 wherein the fibrous material is cross-linked carboxymethylcellulose sodium wherein the fibres in the fibrous material are from about 50 microns to about 300 microns in length.
Claim 13
Dependent Claim
13 words
A capsule shell of claim 1 which contain a hygroscopic or deliquescent component.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |