US3769432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and method of use of substituted guanidines
Assignee: Wyeth Holdings LLC
•
Filing: 1970-12-02
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Granted: 1973-10-30
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Expires: 1990-12-02
Abstract
Abstract THE PREPARATION OF 1,3-BIS(4- AND 3,4-SUBSTITUTED BENZYLIDENEAMINO)GUANIDINES AND SALTS, AND OF 1-LOWERALKYL - 1,3-BIS(4- AND 3,4-SUBSTITUTED BENZYLIDENEAMINO) GAUNIDINES AND THEIR SALTS AND OF 1,3-DILOWERALKYL-1,3-BIS (4- AND 3,4-SUBSTITUTED BENZYLIDENEAMINO)GUANIDINES AND THEIR SALTS FROM 1,3-DIAMINOGUANDINE AND ITS SALTS, AND FROM 1-LOWERALKYL-1,3-DIAMINOGUANIDINE ND ITS SALTS AND FROM 1,3-DIAMINO-1,3-DILOWER-ALKYLGUANIDINE AND ITS SALTS, RESPECTIVELY, AND N-LOWERALKANOYL DERIVATIVES THEREOF. THE COMPOSITIONS AND COMPOUNDS PREPARED HAVE ANTIPROTOZOAL ACTIVITY PARTICULARLY AGAINST COCCIDIOSIS AND MALARIA.
Inventors
- 👤 A Tomcufcik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:53
CPC Classifications
C; C07; C07C; C07C281/00; C07C281/16; C07C281/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |