Patent US2927112A successfully refreshed from Google Patents.
US2927112A
Expired / Lapsed
US
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3-amino-6-halopyridazines and process of preparation
Assignee: STWB Inc
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Filing: 1953-09-24
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Granted: 1960-03-01
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Expires: 1973-09-24
Abstract
No abstract record available.
Inventors
- 👤 Steck Edgar Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:44
CPC Classifications
C; C07; C07D; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A MEMBER OF THE GROUP CONSISTING OF 3-AMINO-6HALOPYRIADZINES AND ACID-ADDITION SLATS THEREOF, SAID PYRIDAZINES HAVING THE FORMULA
Claim 2
Dependent Claim
17 words
A MEMBER OF THE GROUP CONSISTING OF 3-AMINO-6HALOPYRIADZINES AND ACID-ADDITION SLATS THEREOF, SAID PYRIDAZINES HAVING THE FORMULA
References Cited (Backward Citations)
US2671086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |