US3352920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel d-nor-progesterones and processes for their manufacture
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1965-02-25
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Granted: 1967-11-14
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Expires: 1985-02-25
Abstract
No abstract record available.
Inventors
- 👤 Meinwald Jerrold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:14
CPC Classifications
C; C07; C07J; C07J61/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/843; Y10S435/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF 16-X-D-NOR-PROGESTERONE, WHEREIN X IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HYDROXY, AND LOWER ALKANOLYLOXY, AND 1-DEHYDRO ANALOGS THEREOF.
Claim 2
Dependent Claim
29 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF 16-X-D-NOR-PROGESTERONE, WHEREIN X IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HYDROXY, AND LOWER ALKANOLYLOXY, AND 1-DEHYDRO ANALOGS 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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |