US2537868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble salts of diethyl-stilbestrol di-(sulfoacetate) and process for the manufacture thereof
Assignee: F Hoffmann La Roche AG
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Filing: 1950-01-17
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Granted: 1951-01-09
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Expires: 1970-01-17
Abstract
No abstract record available.
Inventors
- 👤 Urban Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:26
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND OF THE GROUP CONSISTING OF DIETHYLSTILBOESTROL DI-(SULFOACETATE) AND ITS WATERSOLUBLE SALTS.
Claim 2
Dependent Claim
13 words
A COMPOUND OF THE GROUP CONSISTING OF DIETHYLSTILBOESTROL DI-(SULFOACETATE) AND ITS WATERSOLUBLE SALTS.
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) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |