US2728779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of substituted aminobutanes
Assignee: Eli Lilly and Co
•
Filing: 1952-12-03
•
Granted: 1955-12-27
•
Expires: 1972-12-03
Abstract
No abstract record available.
Inventors
- 👤 Pohland Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:53
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE A-DL FORM OF A BASE REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
18 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE A-DL FORM OF A BASE REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
GB615136A
Cited
US2649445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |