Patent US3370070A successfully refreshed from Google Patents.
US3370070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
[n-alkyl-17-(dialkylaminoalkyl)amino] androst-4-en-3-ones
Assignee: GD Searle LLC
•
Filing: 1965-06-16
•
Granted: 1968-02-20
•
Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 Paul D Klimstra
- 👤 Raymond E Counsell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:23
CPC Classifications
C; C07; C07J; C07J41/00; C07J41/0005
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)
US3284475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |