US3058882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N'-substituted-3-carboxy-6-halo-sulfanilamide and derivatives thereof
Assignee: Hoechst AG
•
Filing: 1960-12-14
•
Granted: 1962-10-16
•
Expires: 1980-12-14
Abstract
No abstract record available.
Inventors
- 👤 Sturm Karl
- 👤 Siedel Walter
- 👤 Weyer Rudi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:15
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
4 words
BENZENE-SULFONAMIDES HAVING THE FORMULA
Claim 2
Dependent Claim
4 words
BENZENE-SULFONAMIDES HAVING THE FORMULA
Claim 3
Dependent Claim
17 words
A TABLET CONSISTING ESSENTIALLY OF (1) ABOUT 0.01 TO 0.2 GRAM OF A BENZENE-SULFONAMIDE HAVING THE FORMULA
Claim 4
Dependent Claim
17 words
A TABLET CONSISTING ESSENTIALLY OF (1) ABOUT 0.01 TO 0.2 GRAM OF A BENZENE-SULFONAMIDE HAVING THE FORMULA
References Cited (Backward Citations)
US2952680A
Cited
US2910488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |