US2557052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Progesterone suspensions
Assignee: Pharmacia and Upjohn Co
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Filing: 1947-10-24
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Granted: 1951-06-12
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Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Robert E Himelick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/565; A61K31/566; A61K31/575
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AS AN ARTICLE OF MANUFACTURE, A STABILIZED AQUEOUS SUSPENSION OF PROGESTERONE COMPRISING, PER CUBIC CENTIMETER OF SUSPENSION, 20 TO 80 MILLIGRAMS OF PROGESTERONE, 0.5 TO 8.0 MILLIGRAMS OF A SUSPENSION STABILIZER, 0.1 TO 2.0 MILLIGRAMS OF A WATER-SOLUBLE POLYALKYLENE OXIDE DERIVATIVE OF A PARTIAL LONG-CHAIN FATTY ACID ESTER OF A COMPOUND OF THE GROUP CONSISTING OF POLYHYDRIC ALCOHOLS AND THEIR ANHYDRIDES, WHEREIN THE SUSPENSION STABILIZER IS A STEROID OF THE GROUP CONSISTING OF ALKYL ESTERS OF CHOLIC ACID, MIXED ESTROGENIC SUBSTANCES, ESTRONE, AND MIXED SOY BEAN STEROLS.
Claim 2
Dependent Claim
87 words
AS AN ARTICLE OF MANUFACTURE, A STABILIZED AQUEOUS SUSPENSION OF PROGESTERONE COMPRISING, PER CUBIC CENTIMETER OF SUSPENSION, 20 TO 80 MILLIGRAMS OF PROGESTERONE, 0.5 TO 8.0 MILLIGRAMS OF A SUSPENSION STABILIZER, 0.1 TO 2.0 MILLIGRAMS OF A WATER-SOLUBLE POLYALKYLENE OXIDE DERIVATIVE OF A PARTIAL LONG-CHAIN FATTY ACID ESTER OF A COMPOUND OF THE GROUP CONSISTING OF POLYHYDRIC ALCOHOLS AND THEIR ANHYDRIDES, WHEREIN THE SUSPENSION STABILIZER IS A STEROID OF THE GROUP CONSISTING OF ALKYL ESTERS OF CHOLIC ACID, MIXED ESTROGENIC SUBSTANCES, ESTRONE, AND MIXED SOY BEAN STEROLS.
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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |