Patent US4809429A successfully refreshed from Google Patents.
Patent US3148184A successfully refreshed from Google Patents.
US3148184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6, 7-dihalogenated corticoids
Assignee: Merck Sharp & Dohme LLC
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Filing: 1962-11-30
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Granted: 1964-09-08
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 David H Gould
- 👤 Elliot L Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:42
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A COMPOUND OF THE GROUP CONSISTING OF 16-A-6-Z, 7-Z''-9B,11B-OXIDO-1,4-PREGNADIENE - 17A, 21-DIOL-3,20DIONE, 16-A-6-Z, 7-Z''-9B,11-OXIDO-4-PREGNENE-17A, 21-DIOL3,20-DIONE AND THE 21-LOWER ALKANOYL ESTERS THEREOF WHEREIN A IS A MEMBER OF THE GROUP CONSISTING OF H AND LOWER ALKYL, Z IS HALOGEN OF ATOMIC WEIGHT LESS THAN IODINE AND Z'' IS HALOGEN.
Claim 2
Dependent Claim
48 words
A COMPOUND OF THE GROUP CONSISTING OF 16-A-6-Z, 7-Z''-9B,11B-OXIDO-1,4-PREGNADIENE - 17A, 21-DIOL-3,20DIONE, 16-A-6-Z, 7-Z''-9B,11-OXIDO-4-PREGNENE-17A, 21-DIOL3,20-DIONE AND THE 21-LOWER ALKANOYL ESTERS THEREOF WHEREIN A IS A MEMBER OF THE GROUP CONSISTING OF H AND LOWER ALKYL, Z IS HALOGEN OF ATOMIC WEIGHT LESS THAN IODINE AND Z'' IS HALOGEN.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |