US2623045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(substituted-aminoethyl) 4-aminobenzoic acid diethylaminoethyl esters
Assignee: ENDO PRODUCTS Inc
•
Filing: 1949-12-08
•
Granted: 1952-12-23
•
Expires: 1969-12-08
Abstract
No abstract record available.
Inventors
- 👤 Schlesinger Albert
- 👤 Samuel M Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:54
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/60; C07D211/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
BASIC NITROGEN COMPOUNDS AND THEIR ACID ADDITION SALTS WHEREIN THE FREE BASE FORMS HAVE THE FORMULA WHEREIN: R AND R'' ARE MEMBERS OF THE GROUP CONSISTING OF LOWER ALKYL, MONOCYCLIC ARYL ALKYL, AND THE TERMINAL ENDS OF THE GROUP THAT FORMS WITH THE NITROTEN ATOM A RING OF THE GROUP CONSISTING OF MORPHOLINO AND PIPERIDINO, AND R" IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND MONOCYCLIC-ARYL ALKYL.
Claim 2
Dependent Claim
69 words
BASIC NITROGEN COMPOUNDS AND THEIR ACID ADDITION SALTS WHEREIN THE FREE BASE FORMS HAVE THE FORMULA WHEREIN: R AND R'' ARE MEMBERS OF THE GROUP CONSISTING OF LOWER ALKYL, MONOCYCLIC ARYL ALKYL, AND THE TERMINAL ENDS OF THE GROUP THAT FORMS WITH THE NITROTEN ATOM A RING OF THE GROUP CONSISTING OF MORPHOLINO AND PIPERIDINO, AND R" IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND MONOCYCLIC-ARYL ALKYL.
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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |