US3734757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiocarbohydrazone fungicides
Assignee: Canadian Patents and Development Ltd
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Filing: 1970-08-07
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Granted: 1973-05-22
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Expires: 1990-08-07
Abstract
Abstract A fungicidal composition, method of application and protected articles are described where the active fungicide (or fungistatic compound) is a mono- or dithiocarbohydrazone which may be prepared by condensation of thiocarbohydrazide with an aldehyde or ketone.
Inventors
- 👤 D Wiles
- 👤 T Suprunchuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M13/00; D06M13/322; D06M13/402; D06M13/422; D06M16/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
31 words
A method of claim 1 wherein each of R and R1 is independently alkyl of up to 20 carbon atoms, phenyl, m-nitrophenyl, 2,4-dichlorophenyl, o-hydroxyphenyl, p-methoxyphenyl, o-chlorophenyl, o-dimethylaminophenyl, isopropylphenyl, 3,4-dimethylphenyl or m-dihydroxyphenyl.
Claim 2
Dependent Claim
39 words
A method of claim 2, wherein said compound contains the group derived from an aliphatic aldehyde of five to 12 carbon atoms, benzaldehyde, m-nitrobenzaldehyde, 2,4-dichlorobenzaldehyde, anisaldehyde, o-hydroxybenzaldehyde, o-chlorobenzaldehyde, o-dimethylaminobenzaldehyde, cumaldehyde, veratraldehyde, resorcylaldehyde, acetone, methyl ethyl ketone, 2-octanone or 2-heptadecanone.
Claim 3
Dependent Claim
85 words
A cellulosic article containing a fungicidally-effective amount of a compound of the formula wherein each of R and R1 is independently hydrogen, alkyl of up to 20 carbon atoms, phenyl, m-nitrophenyl, 2,4-dichlorophenyl, o-hydroxyphenyl, p-methoxyphenyl, o-chlorophenyl, o-dimethylaminophenyl, p-isopropylphenyl, 3,4-dimethylphenyl, piperidyl, m-dihydroxyphenyl, benzyl, styryl, furyl, or 2-thiofuryl, or R and R1 taken together are tetramethylene or pentamethylene; and X and Y are both hydrogen or together represent CRR1, and a solid or liquid carrier, whereby the growth of fungi is retarded by the presence of said compound.
Claim 4
Dependent Claim
34 words
An cellulosic article of claim 4, wherein the proportion of said compound present in the cellulosic article is from 1 to 10 percent by weight, based on the weight of the untreated cellulosic article.
Claim 5
Dependent Claim
21 words
A cellulosic article of claim 4, wherein each of R and R1 is independently alkyl of up to 20 carbon atoms.
Claim 6
Dependent Claim
40 words
A cellulosic article of claim 6 wherein said compound contains the group derived from an aliphatic aldehyde of five to 12 carbon atoms, benzaldehyde, m-nitrobenzaldehyde, 2,4-dichlorobenzaldehyde, anisaldehyde, o-hydroxybenzaldehyde, o-chlorobenzaldehyde, o-dimethylaminobnzaldehyde, cumaldehyde, veratraldehyde, resorcyladldehyde, acetone, methyl ethyl ketone, 2-octanone or 2-heptadecanone.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |