US2619499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoalkyl esters of alpha,alpha-diaryl-gamma,delta-unsaturated aliphatic acids and the production thereof
Assignee: GD Searle LLC
•
Filing: 1949-12-10
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Granted: 1952-11-25
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Expires: 1969-12-10
Abstract
No abstract record available.
Inventors
- 👤 Krimmel Carl Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:56
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF (A) BASIC ESTERS OF THE FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF (A) BASIC ESTERS OF THE 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) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |