US2882296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-diethylaminoethyl 3-amino-2-alkyoxybenzoates and their preparation
Assignee: STWB Inc
•
Filing: 1952-11-04
•
Granted: 1959-04-14
•
Expires: 1972-11-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond O Clinton
- 👤 Stanley C Laskowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:16
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
27 words
A MEMBER OF THE GROUP CONSISTING OF A 2-DIETHYLAMINOETHYL 3-AMINO-2-ALKOXYBENZOATE WHERE THE 2-ALKOXY SUBSTITUENT HAS FROM THREE TO FOUR CARBON ATOMS AND NONTOXIC ACID ADDITION SALTS THEREOF.
Claim 2
Dependent Claim
27 words
A MEMBER OF THE GROUP CONSISTING OF A 2-DIETHYLAMINOETHYL 3-AMINO-2-ALKOXYBENZOATE WHERE THE 2-ALKOXY SUBSTITUENT HAS FROM THREE TO FOUR CARBON ATOMS AND NONTOXIC ACID ADDITION SALTS THEREOF.
Claim 3
Dependent Claim
35 words
A PROCESS OF PREPARING A 2-DIETHYLAMINOETHYL 3AMINO-2-ALKOXYBENZOATE WHERE THE 2-ALKOXY SUBSTITUENT HAS FROM THREE TO FOUR CARBON ATOMS WHICH COMPRISES TREATING THE CORRESPONDING 2-DIETHYLAMINOETHYL 3-NITRO-2ALKOXYBENZOATE WITH A REDUCING AGENT EFFECTIVE TO REDUCE NITRO TO AMINO.
Claim 4
Dependent Claim
35 words
A PROCESS OF PREPARING A 2-DIETHYLAMINOETHYL 3AMINO-2-ALKOXYBENZOATE WHERE THE 2-ALKOXY SUBSTITUENT HAS FROM THREE TO FOUR CARBON ATOMS WHICH COMPRISES TREATING THE CORRESPONDING 2-DIETHYLAMINOETHYL 3-NITRO-2ALKOXYBENZOATE WITH A REDUCING AGENT EFFECTIVE TO REDUCE NITRO TO AMINO.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |