Patent US3210390A successfully refreshed from Google Patents.
US3210390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
17alpha-(2-alkynyl)estra-1, 3, 5(10)-triene-3, 17beta-diols and esters corresponding
Assignee: Individual
•
Filing: 1964-08-19
•
Granted: 1965-10-05
•
Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Meloy Sybil Piskur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:23
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2666769A
Cited
US3107257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |