US4567193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(Formylamino)-N-(1H-tetrazol-5-yl)benzamide and use as anti-allergics
Assignee: Aventis Pharmaceuticals Inc
•
Filing: 1983-07-22
•
Granted: 1986-01-28
•
Expires: 2003-07-22
Abstract
Abstract 2-(Formylamino)-N-(1H-tetrazol-5-yl)benzamide and its pharmaceutically acceptable salts are useful as antiallergic agents. The compounds are prepared by the reaction of 2-amino-N-(1H-tetrazol-5-yl)benzamide with formic acetic anhydride.
Inventors
- 👤 Norton P. Peet
- 👤 Shyam Sunder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:11
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/04; C07D275/06; C07D257/00; C07D257/02; C07D257/04; A; A61; A61P; A61P37/00; A61P37/08; C07D257/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
7 words
2-(Formylamino)-N-(1H-tetrazol-5-yl)benzamide and the pharmaceutically acceptable salts thereof.
Claim 2
Dependent Claim
7 words
2-(Formylamino)-N-(1H-tetrazol-5-yl)benzamide and the pharmaceutically acceptable salts thereof.
Claim 3
Dependent Claim
9 words
A compound according to claim 1 which is 2-(formylamino)-N-(1H-tetrazol-5-yl)benzamide.
Claim 4
Independent Claim
33 words
A method for inhibiting the result of antibody-antigen reactions in mammals which comprises administration to a mammal susceptible to allergic reaction of an effective amount of 2-(formylamino)-N-(1H-tetrazol-5-yl)benzamide or a pharmaceutically acceptable salt thereof.
Claim 5
Independent Claim
33 words
A method for inhibiting the result of antibody-antigen reactions in mammals which comprises administration to a mammal susceptible to allergic reaction of an effective amount of 2-(formylamino)-N-(1H-tetrazol-5-yl)benzamide or a pharmaceutically acceptable salt thereof.
References Cited (Backward Citations)
US4146631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |