Patent US4019809A successfully refreshed from Google Patents.
US3198809A
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Microbiological reduction process and steroid products produced thereby
Assignee: STWB Inc
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Filing: 1963-11-07
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Granted: 1965-08-03
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Expires: 1983-11-07
Abstract
No abstract record available.
Inventors
- 👤 Eldon D Nielson
- 👤 Pat B Hamilton
- 👤 Riano Moises
- 👤 Rosi David
- 👤 George P Peruzzotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:10
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/911; Y10S435/913; Y10S435/917; Y10S435/918; Y10S435/919; Y10S435/925; Y10S435/931; Y10S435/933; Y10S435/939
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
37 words
A PROCESS FOR PRODUCING A 2-HYDROXYMETHYL STEROID WHICH COMPRISES SUBJECTING A 2-HYDROXYMETHYLENE STERIOD TO THE REDUCTIVE FERMENTATIVE ENZYMATIC ACTION OF A MICROORGANISM OF AN ORDER SELECTED FROM THE GROUP CONSISTING OF ACTINOMYCETALES, MONILIALES, MUCORALES, SPHAERIALES AND SPIROGYRALES.
Claim 2
Dependent Claim
37 words
A PROCESS FOR PRODUCING A 2-HYDROXYMETHYL STEROID WHICH COMPRISES SUBJECTING A 2-HYDROXYMETHYLENE STERIOD TO THE REDUCTIVE FERMENTATIVE ENZYMATIC ACTION OF A MICROORGANISM OF AN ORDER SELECTED FROM THE GROUP CONSISTING OF ACTINOMYCETALES, MONILIALES, MUCORALES, SPHAERIALES AND SPIROGYRALES.
Claim 3
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 5
Dependent Claim
12 words
A MEMBER OF THE GROUP CONSISTING OF 2A-HYDROXYMETHYLTESTOLOLACTONE AND LOWER-ALKANOYL ESTERS THEREOF.
Claim 6
Dependent Claim
12 words
A MEMBER OF THE GROUP CONSISTING OF 2A-HYDROXYMETHYLTESTOLOLACTONE AND LOWER-ALKANOYL ESTERS THEREOF.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |