US3829579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable solutions of pge-type compounds
Assignee: Pharmacia and Upjohn Co
•
Filing: 1973-05-11
•
Granted: 1974-08-13
•
Expires: 1993-05-11
Abstract
Abstract Stable solutions of PGE-type compounds are obtained by dissolving the compounds in an anhydrous, water-miscible, pharmacologically acceptable, dipolar aprotic solvent.
Inventors
- 👤 R Stehle
- 👤 T Oesterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/557; A61K47/00; A61K47/06; A61K47/16; A61K47/18; A61K9/00; A61K9/0012; A61K9/0019; C; C07; C07C; C07C405/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
9 words
A solution according to claim 1 which is sterile.
Claim 2
Dependent Claim
22 words
A solution of a prostaglandin-like compound of the PGE-type in anhydrous N,N-dimethylacetamide in a concentration of at least 1 mg. per ml.
Claim 3
Dependent Claim
9 words
A solution according to claim 3 which is sterile.
Claim 4
Dependent Claim
15 words
A solution according to claim 3 wherein said compound is PGE1 or PGE1 methyl ester.
Claim 5
Dependent Claim
15 words
A solution according to claim 3 wherein said compound is 15-methyl-PGE1 or 15-methyl-PGE1 methyl ester.
Claim 6
Dependent Claim
15 words
A solution according to claim 3 wherein said compound is 15-methyl-PGE2 or 15-methyl-PGE2 methyl ester.
Claim 7
Dependent Claim
19 words
A solution according to claim 3 wherein said compound is 15 Beta -15-methyl-PGE1 or 15 Beta -15-methyl-PGE1 methyl ester.
Claim 8
Dependent Claim
19 words
A solution according to claim 3 wherein said compound is 15 Beta -15-methyl-PGE2 or 15 Beta -15-methyl-PGE2 methyl ester.
Claim 9
Dependent Claim
16 words
A solution according to claim 3 wherein said compound is 16, 16-dimethyl-PGE1 or 16,16-dimethyl-PGE1 methyl ester.
Claim 10
Dependent Claim
16 words
A solution according to claim 3 wherein said compound is 16, 16-dimethyl-PGE2 or 16,16-dimethyl-PGE2 methyl ester.
Claim 11
Dependent Claim
15 words
A solution according to claim 3 wherein said compound is 17-phenyl-18,19,20-trinor-PGE2 or 17-phenyl-18,19,20-trinor-PGE2 methyl ester.
Claim 12
Dependent Claim
23 words
A solution of PGE2 in an anhydrous, water-miscible, pharmacologically acceptable, dipolar aprotic solvent in a concentration of at least 1 mg. per ml.
Claim 13
Dependent Claim
13 words
A solution according to claim 13 in which the solvent is anhydrous N,N-dimethylacetamide.
Claim 14
Dependent Claim
17 words
A solution according to claim 14 in which said N,N-dimethylacetamide contains not more than 0.1 percent water.
Claim 15
Dependent Claim
9 words
A solution according to claim 15 which is sterile.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |