US2854471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-haloacyl-1,4a-dimethyl-7-isopropyl 1,2,3,4,4a,9,10,10a-octahydrophenanthrene-1-carbonitriles
Assignee: GD Searle LLC
•
Filing: 1956-12-24
•
Granted: 1958-09-30
•
Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Willard M Hoehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:49
CPC Classifications
C; C07; C07C; C07C255/00; C07C255/45; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
6 words
A COMPOUND OF THE STRUCTURAL 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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |