Patent US3075970A successfully refreshed from Google Patents.
US3075970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel ethynylated analogs of estradiol and process
Assignee: Sanofi Aventis France
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Filing: 1961-12-07
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Granted: 1963-01-29
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Expires: 1981-12-07
Abstract
No abstract record available.
Inventors
- 👤 Nomine Gerard
- 👤 Bucourt Robert
- 👤 Snozzi Candido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:30
CPC Classifications
C; C07; C07J; C07J17/00; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
3-(TETRAHYDROPYRANYL-2'')-OXY-13B-N-PROPYL-$1,3,5(10)GONATRIENE-17-ONE.
Claim 2
Dependent Claim
1 words
3-(TETRAHYDROPYRANYL-2'')-OXY-13B-N-PROPYL-$1,3,5(10)GONATRIENE-17-ONE.
References Cited (Backward Citations)
US2868784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |