US3284475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
17beta-(dialkylaminoalkyl) aminoestra-1, 3, 5(10)-trien-3-ols, alkyl and acyl derivatives thereof
Assignee: GD Searle LLC
•
Filing: 1965-02-08
•
Granted: 1966-11-08
•
Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 Paul D Klimstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:57
CPC Classifications
C; C07; C07J; C07J41/00; C07J41/0005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A COMPOUND OF THE FORMULA 3-(R-O-),17-((LOWER ALKYL)2-N-ALK-N(-R'')-)-1,3,5(10)ESTRATRIENE WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, A FORMYL AND A LOWER ALKYL RADICAL, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, A FORMYL AND A METHYL RADICAL AND ALK IS A LOWER ALKYLENE RADICAL.
Claim 2
Dependent Claim
47 words
A COMPOUND OF THE FORMULA 3-(R-O-),17-((LOWER ALKYL)2-N-ALK-N(-R'')-)-1,3,5(10)ESTRATRIENE WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, A FORMYL AND A LOWER ALKYL RADICAL, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, A FORMYL AND A METHYL RADICAL AND ALK IS A LOWER ALKYLENE RADICAL.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |