US2991283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted amino alkyl esters of paraalkyl sulfamide benzoic acids
Assignee: Saab Bofors AB
•
Filing: 1957-01-28
•
Granted: 1961-07-04
•
Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Ekenstam Bo Thuresson Af
- 👤 Pettersson Bror Gosta
- 👤 Henn Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:45
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07C; C07C311/00; C07C311/15; C07D295/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
COMPOUNDS OF THE GROUP OF SUBSTITUTED AMINO ALKYL ESTERS OF PARA-ALKYL SULFAMIDE BENZOIC ACIDS AND THE PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF WHEREIN THE FREE-BASE FORM HAS THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
30 words
COMPOUNDS OF THE GROUP OF SUBSTITUTED AMINO ALKYL ESTERS OF PARA-ALKYL SULFAMIDE BENZOIC ACIDS AND THE PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF WHEREIN THE FREE-BASE FORM HAS THE STRUCTURAL FORMULA:
Claim 3
Dependent Claim
9 words
THE P-(ETHYL) (BUTYL) SULFAMIDE BENZOIC ACID ESTER OF MORPHOLINOETHANOL.
Claim 4
Dependent Claim
9 words
THE P-(ETHYL) (BUTYL) SULFAMIDE BENZOIC ACID ESTER OF MORPHOLINOETHANOL.
References Cited (Backward Citations)
US2789938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |