US2819264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steroid intermediates
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1956-01-26
•
Granted: 1958-01-07
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 David H Gould
- 👤 Hershel L Herzog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:46
CPC Classifications
C; C07; C07J; C07J71/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/843; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
STEROID COMPOUNDS HAVNG THE FOLLING FORMULA:
Claim 2
Dependent Claim
6 words
STEROID COMPOUNDS HAVNG THE FOLLING FORMULA:
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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |