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Patent US4041033A successfully refreshed from Google Patents.
US4041033A
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Novel derivatives of pyridazine-2-oxide
Assignee: Colgate Palmolive Co
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Filing: 1976-02-17
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Granted: 1977-08-09
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Expires: 1996-02-17
Abstract
Abstract Novel pyridazine-2-oxide derivatives inclusive of 3-mercaptopyridazine-2-oxides, disulfides thereof, metal salts thereof, and 3-(2-oxopyridazinyl)isothiouronium compounds having particular utility as antimicrobial agents per se and in skin cleansing detergent compositions, shampoos, hair dressing and the like.
Inventors
- 👤 Miriam L. Douglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:36
CPC Classifications
C; C07; C07D; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/18; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/494; A61Q; A61Q17/00; A61Q17/005; A61Q19/00; A61Q5/00; A61Q5/02; A61Q5/06; A61Q5/006
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
A 3-mercaptopyridazine-2-oxide compound having the following structural formula: ##STR5## wherein R 1 , R 2 , R 3 are each independently selected from the group consisting of hydrogen, straight and branched chain alkyl group; R 4 is C(NH 2 ) 2 X where X is a negatively charged group.
Claim 2
Dependent Claim
49 words
A 3-mercaptopyridazine-2-oxide compound having the following structural formula: ##STR5## wherein R 1 , R 2 , R 3 are each independently selected from the group consisting of hydrogen, straight and branched chain alkyl group; R 4 is C(NH 2 ) 2 X where X is a negatively charged group.
Claim 3
Dependent Claim
10 words
A compound according to claim 1, which is 3-(2-oxopyridazinyl)isothiouronium halide.
Claim 4
Dependent Claim
10 words
A compund according to claim 1, which is 3-(2-oxopyridazinyl)isothiouronium chloride.
References Cited (Backward Citations)
DE2239947A1
Cited
US3892737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |