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US3674869A
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Compositions for stabilizing trans-diethylstilbestrol
Assignee: Eli Lilly and Co
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Filing: 1970-06-12
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Granted: 1972-07-04
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Expires: 1990-06-12
Abstract
Abstract Trans-diethylstilbestrol is stabilized in liquid and solid animal feed formulations by adding thereto an inhibitory amount of a compound containing sulfur, in the form of a thiol group or a thiol precursor group, to substantially inhibit isomerization to the cis-diethylstilbestrol. Elemental sulfur likewise inhibits the isomerization in the presence of base.
Inventors
- 👤 Nelson H Ludwig
- 👤 William A White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:54
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/02; A61K47/06; A61K47/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
12 words
The composition of claim 1 wherein the sulfur containing compound is thiophenol.
Claim 2
Dependent Claim
18 words
The composition of claim 1 wherein the sulfur containing compound is sulfur, in the presence of a base.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein the sulfur containing compound is ammonium sulfide.
References Cited (Backward Citations)
US3042525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |