US2596156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoalkyl esters of n, n-diarylanthranilic acids and salts thereof
Assignee: GD Searle LLC
•
Filing: 1949-04-20
•
Granted: 1952-05-13
•
Expires: 1969-04-20
Abstract
No abstract record available.
Inventors
- 👤 Krimmel Carl Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:48
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/14; C07D295/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF A BASIC ESTER OF THE FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF A BASIC ESTER OF THE FORMULA
References Cited (Backward Citations)
DE180291C
Cited
DE172447C
Cited
US1692695A
Cited
US1724248A
Cited
US2406627A
Cited
US2429275A
Cited
US2502451A
Cited
US2461038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |