US4663316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibiotic clathrates and pharmaceutical compositions thereof
Assignee: Warner Lambert Co LLC
•
Filing: 1985-06-28
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Granted: 1987-05-05
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Expires: 2005-06-28
Abstract
Abstract Cyclodextrin clathrates of certain unsaturated phosphorous containing antibiotics exhibit enhanced stability in pharmaceutical compositions.
Inventors
- 👤 Fred C. Ninger
- 👤 Weichi Liao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:37
CPC Classifications
B; B82; B82Y; B82Y5/00; A; A61; A61K; A61K31/00; A61K31/66; A61K31/665; A61K47/00; A61K47/50; A61K47/69; A61K47/6949; A61K47/6951; A61P; A61P35/00; C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/655; C07F9/6552; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; C08B37/0012; C08B37/0015
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
13 words
Cyclodextrin clathrates of the antibiotic compound of phosphotrienin having the structural formula: ##STR2##
Claim 2
Dependent Claim
13 words
Cyclodextrin clathrates of the antibiotic compound of phosphotrienin having the structural formula: ##STR2##
Claim 3
Dependent Claim
9 words
The alpha-cyclodextrin clathrate of the compound of claim 1.
Claim 4
Dependent Claim
9 words
The beta-cyclodextrin clathrate of the compound of claim 1.
Claim 5
Dependent Claim
9 words
The gamma-cyclodextrin clathrate of the compound of claim 1.
Claim 6
Dependent Claim
9 words
The delta-cyclodextrin clathrate of the compound of claim 1.
Claim 7
Dependent Claim
18 words
A pharmaceutical composition containing one or more of the clathrates of claim 1 and a pharmaceutically acceptable carrier.
Claim 8
Dependent Claim
14 words
A pharmaceutical composition containing the clathrate of claim 2 and a pharmaceutically acceptable carrier.
Claim 9
Dependent Claim
14 words
A pharmaceutical composition containing the clathrate of claim 3 and a pharmaceutically acceptable carrier.
Claim 10
Dependent Claim
14 words
A pharmaceutical composition containing the clathrate of claim 4 and a pharmaceutically acceptable carrier.
Claim 11
Dependent Claim
14 words
A pharmaceutical composition containing the clathrate of claim 5 and a pharmaceutically acceptable carrier.
References Cited (Backward Citations)
US4578383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |