Patent US3404873A successfully refreshed from Google Patents.
US3276959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized steroid compositions
Assignee: Hefa GmbH
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Filing: 1963-08-08
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Granted: 1966-10-04
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Expires: 1983-08-08
Abstract
No abstract record available.
Inventors
- 👤 Ritter Ludwig
- 👤 Kraft Horst
- 👤 Friedrich Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:44
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/573; A61K31/565; A61K31/568
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A STABLE AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER HAVING DISSOLVED THEREIN A PARTIAL ESTER OF A STERIOD ALCOHOL SELECTED FROM THE GROUP CONSISTING OF CORTICOS TERONE, DEHYDROCORTICOSTERONE, 17 - HYDROOCORTICOSTERONE CORTISONE, FLUOROHYDROCORTISONE, 1 - DEHYDROCORTISONE, PREDNISOLONE, DEXAMETHASONE AND TESTOSTERONE, AND A POLYBASIC ACID SELECTED FROM THE GROUP CONSISTING OF SUCCINIC ACID, MALIC ACID, FUMARIC ACID, ADIPIC ACID, CITRIC ACID TARTARIC ACID, M-SULFOBENZOIC ACID, M-PHOSPHOSBENZOIC ACID AND ORTHOPHOSPHORIC ACID; KHELLINO ACETIC ACID; ETHYLENEDIAMINETETRACETIC ACID; AND A SUBSTANCE SELECTED FRM THE GROUP CONSISTING OF LOWER ALKANOL AMINES AND THE HYDROXIDES, CARBONATES AND ACETATES OF SODIUM, POSTASSIUM AND AMMONIUM, THE COMBINED AMOUNT OF SAID KHELLINO ACETIC ACID AND SAID ETHYLENEDIAMINETETRAACETIC ACID BEING EQUAL TO AT LEAST TWICE THE WEIGHT OF SAID DISSOLVED PARTIAL ESTER, AND THE AMOUNT OF SAID SUBSTANCE BEING SO CHOSE AS TO MAINTAIN THE PH OF SAID SOLUTION BETWEEN 7 AND 8.
Claim 2
Dependent Claim
142 words
A STABLE AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER HAVING DISSOLVED THEREIN A PARTIAL ESTER OF A STERIOD ALCOHOL SELECTED FROM THE GROUP CONSISTING OF CORTICOS TERONE, DEHYDROCORTICOSTERONE, 17 - HYDROOCORTICOSTERONE CORTISONE, FLUOROHYDROCORTISONE, 1 - DEHYDROCORTISONE, PREDNISOLONE, DEXAMETHASONE AND TESTOSTERONE, AND A POLYBASIC ACID SELECTED FROM THE GROUP CONSISTING OF SUCCINIC ACID, MALIC ACID, FUMARIC ACID, ADIPIC ACID, CITRIC ACID TARTARIC ACID, M-SULFOBENZOIC ACID, M-PHOSPHOSBENZOIC ACID AND ORTHOPHOSPHORIC ACID; KHELLINO ACETIC ACID; ETHYLENEDIAMINETETRACETIC ACID; AND A SUBSTANCE SELECTED FRM THE GROUP CONSISTING OF LOWER ALKANOL AMINES AND THE HYDROXIDES, CARBONATES AND ACETATES OF SODIUM, POSTASSIUM AND AMMONIUM, THE COMBINED AMOUNT OF SAID KHELLINO ACETIC ACID AND SAID ETHYLENEDIAMINETETRAACETIC ACID BEING EQUAL TO AT LEAST TWICE THE WEIGHT OF SAID DISSOLVED PARTIAL ESTER, AND THE AMOUNT OF SAID SUBSTANCE BEING SO CHOSE AS TO MAINTAIN THE PH OF SAID SOLUTION BETWEEN 7 AND 8.
References Cited (Backward Citations)
US2864844A
Cited
US2871160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |