Patent US4004024A successfully refreshed from Google Patents.
US4004024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disinfectant furans
Assignee: STWB Inc
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Filing: 1975-07-07
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Granted: 1977-01-18
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Expires: 1995-07-07
Abstract
Abstract There is disclosed a method for controlling bacteria, fungi and spores which comprises applying thereto a bactericidally, fungicidally and sporicidally effective amount of a furan selected from 2-(R 1 O)-5-(R 2 O)-2,5-dihydrofuran and 2-(R 1 O)-5-(R 2 O)-tetrahydrofuran or mixtures thereof; a process for preparing a 2,5-bis(R 1 O)-2,5-tetrahydrofuran and 2,5-bis(R 1 O)-tetrahydrofuran; and novel 2,5-bis(benzyloxy)tetrahydrofuran.
Inventors
- 👤 Heinz Eggensperger
- 👤 Wolfgang Beilfuss
- 👤 Helmut Hermann Ehlers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:43
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/26; C07D307/30; C07D307/32; C07D307/04; C07D307/18; C07D307/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
207 words
A method for controlling bacteria, fungi and spores which comprises applying thereto a bactericidally, fungicidally and sporicidally effective amount of a furan selected from the group consisting of 2-(R 1 O)-5-(R 2 O)-2,5-dihydrofuran and 2-(R 1 O)-5-(R 2 O)-tetrahydrofuran, or mixtures of said compounds, where R 1 and R 2 independently are selected from the group consisting of alkyl having from one to twelve carbon atoms, alkyl having from one to twelve carbon atoms substituted by from one to three of the same or different halo substituents, hydroxyalkyl having from two to twelve carbon atoms, nitroalkyl having from two to twelve carbon atoms, phenylalkyl wherein alkyl has from one to two carbon atoms, phenoxyalkyl wherein alkyl has from one to two carbon atoms, cycloalkyl having from five to six ring carbon atoms and a total of from five to twelve carbon atoms, alkenyl having from three to four carbon atoms, alkynyl having from three to four carbon atoms, glycidyl, alkoxyalkyl having from three to twelve carbon atoms and alkoxyalkoxyalkyl having from four to twelve carbon atoms; where in each case phenyl and phenoxy are unsubstituted or substituted by one or two of the same or different substituents selected from the group consisting of halo, hydroxy and nitro.
Claim 2
Independent Claim
207 words
A method for controlling bacteria, fungi and spores which comprises applying thereto a bactericidally, fungicidally and sporicidally effective amount of a furan selected from the group consisting of 2-(R 1 O)-5-(R 2 O)-2,5-dihydrofuran and 2-(R 1 O)-5-(R 2 O)-tetrahydrofuran, or mixtures of said compounds, where R 1 and R 2 independently are selected from the group consisting of alkyl having from one to twelve carbon atoms, alkyl having from one to twelve carbon atoms substituted by from one to three of the same or different halo substituents, hydroxyalkyl having from two to twelve carbon atoms, nitroalkyl having from two to twelve carbon atoms, phenylalkyl wherein alkyl has from one to two carbon atoms, phenoxyalkyl wherein alkyl has from one to two carbon atoms, cycloalkyl having from five to six ring carbon atoms and a total of from five to twelve carbon atoms, alkenyl having from three to four carbon atoms, alkynyl having from three to four carbon atoms, glycidyl, alkoxyalkyl having from three to twelve carbon atoms and alkoxyalkoxyalkyl having from four to twelve carbon atoms; where in each case phenyl and phenoxy are unsubstituted or substituted by one or two of the same or different substituents selected from the group consisting of halo, hydroxy and nitro.
Claim 3
Dependent Claim
14 words
A method according to claim 1 where R 1 and R 2 are identical.
Claim 4
Dependent Claim
24 words
A method according to claim 2 where R 1 and R 2 are selected from the group consisting of methyl, ethyl, benzyl and allyl.
Claim 5
Dependent Claim
25 words
A method according to claim 3 where the furan is 2-(R 1 O)-5-(R 2 O)-tetrahydrofuran and R 1 and R 2 are benzyl or allyl.
Claim 6
Dependent Claim
16 words
A method according to claim 3 where R 1 and R 2 are methyl or ethyl.
Claim 7
Dependent Claim
15 words
A method according to claim 5 where the furan is 2-(R 1 O)-5-(R 2 O)-tetrahydrofuran.
Claim 8
Dependent Claim
11 words
A method according to claim 6 where the furan is 2,5-bis(methoxy)tetrahydrofuran.
Claim 9
Dependent Claim
11 words
A method according to claim 6 where the furan is 2,5-bis(ethoxy)tetrahydrofuran.
Claim 10
Dependent Claim
15 words
A method according to claim 5 where the furan is 2-(R 1 O)-5-(R 2 O)-2,5dihydrofuran.
Claim 11
Dependent Claim
11 words
A method according to claim 9 where the furan is 2,5-bis(methoxy)-2,5-dihydrofuran.
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) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |