US2534466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Octahydrophenanthrene-2-carboxylic acids and derivatives thereof
Assignee: CIBA PHARM PROD Inc
•
Filing: 1948-04-13
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Granted: 1950-12-19
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Expires: 1968-04-13
Abstract
No abstract record available.
Inventors
- 👤 Miescher Karl
- 👤 Heer Jules
- 👤 Billeter Jean-Rene
- 👤 Anner George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:37
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/367; C07C51/09; C07C51/36; C07C51/58; C07C51/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF RACEMIC 7-METHOXY-1-ETHYL-2-METHYL-1,2,3,49,10,11,12-OCTAHYDROPHENANTHRENE-2 CARBOXYLIC ACIDS WHICH CORRESPOND TO THE FORMULA
References Cited (Backward Citations)
US2069096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |