US3264332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-halogeno-1, 4, 6-pregnatrienes and the 1, 2-dihydro analogs thereof
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1959-01-07
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Granted: 1966-08-02
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Expires: 1979-01-07
Abstract
No abstract record available.
Inventors
- 👤 David H Gould
- 👤 Elliot L Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:05
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/843
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
COMPOUNDS OF THE GROUP CONSISTING OF 6,6-DIHALOGENO-1,4-PREGNADIENES OF THE FOLLOWING FORMULA AND THE 1,2-DIHYDRO ANALOGS THEREOF:
Claim 2
Dependent Claim
16 words
COMPOUNDS OF THE GROUP CONSISTING OF 6,6-DIHALOGENO-1,4-PREGNADIENES OF THE FOLLOWING FORMULA AND THE 1,2-DIHYDRO ANALOGS THEREOF:
References Cited (Backward Citations)
US2819264A
Cited
US2814631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |