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US3244723A
Expired / Lapsed
US
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Certain 4-aminothiazole compounds and their preparation
Assignee: Dow Chemical Co
•
Filing: 1962-05-22
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Granted: 1966-04-05
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Expires: 1982-05-22
Abstract
No abstract record available.
Inventors
- 👤 Johnson Francis
- 👤 Wilmonte A Nasutavicus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:40
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/38; C07D277/44; C07D277/46; C07D277/40
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
5 words
SUBSTITUTED 2-HALO-4-AMINOTHIAZOLES HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
SUBSTITUTED 2-HALO-4-AMINOTHIAZOLES HAVING THE FORMULA
Claim 3
Dependent Claim
5 words
SUBSTITUTED 4-AMINOTHIAZOLES HAVING THE FORMULA
Claim 4
Dependent Claim
5 words
SUBSTITUTED 4-AMINOTHIAZOLES HAVING THE FORMULA
Claim 5
Dependent Claim
9 words
SUBSTITUTED HYDROGEN HALIDE SALTS OF 2-HALO-4-AMINOTHIAZOLES HAVING THE FORMULA
Claim 6
Dependent Claim
9 words
SUBSTITUTED HYDROGEN HALIDE SALTS OF 2-HALO-4-AMINOTHIAZOLES HAVING THE FORMULA
Claim 7
Dependent Claim
85 words
A PROCESS FOR PREPARING 4-AMINOTHIAZOLES COMPRISING REACTING A THIOCYANATE SELECTED FROM THE GROUP CONSISTING OF A-CYANOMETHYL THIOCYANATE AND A-SUBSTITUTED-A-CYANOMETHYL-THIOCYANATES HAVING THE FORMULA NCSH (H) (R) CN WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL; LOWER ALKYL SUBSTITUTED WITH CHLORO, BROMO, FLUORO, NITRO, AND SULFO; BENZYL; CYCLOHEXYL; CYCLOPENTYL; STYRYL; PHENYL; AND PHENYL SUBSTITUTED WITH CHLORO BROMO, FLUORO, NITRO, SULFO, METHOXY, ACETAMINO, HYDROXY AND CARBETHOXY, WITH TWO MOLAR EQUIVALENTS OF AN HYDROGEN BROMIDE, IN AN INERT SOLVENT, AT A TEMPERATURE BETWEEN 0*C. AND 50*C.
Claim 8
Dependent Claim
85 words
A PROCESS FOR PREPARING 4-AMINOTHIAZOLES COMPRISING REACTING A THIOCYANATE SELECTED FROM THE GROUP CONSISTING OF A-CYANOMETHYL THIOCYANATE AND A-SUBSTITUTED-A-CYANOMETHYL-THIOCYANATES HAVING THE FORMULA NCSH (H) (R) CN WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL; LOWER ALKYL SUBSTITUTED WITH CHLORO, BROMO, FLUORO, NITRO, AND SULFO; BENZYL; CYCLOHEXYL; CYCLOPENTYL; STYRYL; PHENYL; AND PHENYL SUBSTITUTED WITH CHLORO BROMO, FLUORO, NITRO, SULFO, METHOXY, ACETAMINO, HYDROXY AND CARBETHOXY, WITH TWO MOLAR EQUIVALENTS OF AN HYDROGEN BROMIDE, IN AN INERT SOLVENT, AT A TEMPERATURE BETWEEN 0*C. AND 50*C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |