Patent US3155662A successfully refreshed from Google Patents.
US3155662A
Expired / Lapsed
US
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3 halogeno pyridazine-6-mercaptoalkanoic acid amides
Assignee: OSTERREICHISCHE STECKSTOFFWERK
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Filing: 1962-11-06
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Granted: 1964-11-03
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Expires: 1982-11-06
Abstract
No abstract record available.
Inventors
- 👤 Stormann-Menninger Heimo
- 👤 Schonbeck Rupert
- 👤 Kloimstein Engelbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:43
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/50; C; C07; C07D; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A 3,6-DISUBSTITUTED PYRIDAZINE DERIVATIVE HAVING THE FORMULA:
Claim 2
Dependent Claim
7 words
A 3,6-DISUBSTITUTED PYRIDAZINE DERIVATIVE HAVING THE FORMULA:
References Cited (Backward Citations)
DE1098000B
Cited
DE1099544B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |