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US3565991A
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Methods for use and compositions of 17alpha-ethyl-19-nortestosterone and carriers for the sustained release of steroids
Assignee: GD Searle LLC
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Filing: 1968-04-22
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Granted: 1971-02-23
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Expires: 1988-04-22
Abstract
Abstract A METHOD OF CONTROLLING OVULATION AND ESTRUS IN BOVINES BY THE PARENTERAL ADMINISTRATION OF 17-A-THYL-19-NORTESTOSTERONE. COMPOSITIONS CONTAINING 17-A-ETHYL-19-NORTESTOSTERONE FOR PARENTERAL ADMINISTRATION. CARRIERS FOR THE SUSTAINED RELEASE OF STEROIDS COMPRISING THE STEROID DISPERSED IN A COPOLYMER OF A MONOESTER OF AN OLEFINIC ACID AND A DIESTER OF AN OLEFINIC ACID.
Inventors
- 👤 George E Short
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2027
Claims Analysis
Total Claims: 0
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |