US3198791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New sulfanilamido-pyrazoles and process of preparing them
Assignee: Hoechst AG
•
Filing: 1961-04-24
•
Granted: 1965-08-03
•
Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Weyer Rudi
- 👤 Aumuller Walter
- 👤 Korger Gerhard
- 👤 Fuhsganger Rudolf
- 👤 Haussler Alfons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:40
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/38; C07D231/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF SULFANILAMIDO PYRAZOLES OF THE FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF SULFANILAMIDO PYRAZOLES OF THE FORMULA
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
US2988547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |