Patent US3954837A successfully refreshed from Google Patents.
US3954837A
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Substituted allophanates
Assignee: EIDP Inc
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Filing: 1973-10-12
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Granted: 1976-05-04
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Expires: 1993-10-12
Abstract
Abstract Allophanates of the formula: ##EQU1## wherein: THE X's are oxygen or sulfur; R 1 is hydrogen, certain organic radicals, or halogen; and R 2 and R 3 are certain organic radicals, Are useful for the control of flowering and plant sexual reproduction. A preferred use of the compounds of the present invention is to prevent corn inbreeding by applying the allophanate to the plant at or shortly before tassel emergence. Exempliary of such compounds is: ethyl 4-[1-(4-chlorophenylcarbamoylimino)-1-(methoxy-methyl)]allophanate.
Inventors
- 👤 Russell F. Bellina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:20
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/70; C07C335/00; C07C335/30; C07C335/38
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
62 words
Compounds of the formula: ##EQU5## wherein X 1 , X 2 , X 3 , and X 4 and each independently selected from oxygen or sulfur; R 1 is hydrogen, halogen, alkyl of 1 through 4 carbon atoms, methoxy or methylthio; R 2 is alkyl of 1 through 3 carbon atoms; and R 3 is alkyl of 1 through 3 carbon atoms.
Claim 2
Dependent Claim
62 words
Compounds of the formula: ##EQU5## wherein X 1 , X 2 , X 3 , and X 4 and each independently selected from oxygen or sulfur; R 1 is hydrogen, halogen, alkyl of 1 through 4 carbon atoms, methoxy or methylthio; R 2 is alkyl of 1 through 3 carbon atoms; and R 3 is alkyl of 1 through 3 carbon atoms.
Claim 3
Dependent Claim
28 words
The compounds of claim 1 wherein X 1 and X 3 are oxygen; R 1 is halogen, R 2 is methyl; and R 3 is methyl or ethyl.
Claim 4
Dependent Claim
59 words
Compounds of the formula: ##EQU6## wherein X 1 , X 2 , and X 3 are each independently selected from oxygen and sulfur; R 1 is hydrogen, halogen, alkyl of 1 through 4 carbon atoms, methoxy, or methylthio; R 2 is alkyl of 1 through 3 carbon atoms; and R 3 is alkyl of 1 through 3 carbon atoms.
Claim 5
Dependent Claim
59 words
Compounds of the formula: ##EQU6## wherein X 1 , X 2 , and X 3 are each independently selected from oxygen and sulfur; R 1 is hydrogen, halogen, alkyl of 1 through 4 carbon atoms, methoxy, or methylthio; R 2 is alkyl of 1 through 3 carbon atoms; and R 3 is alkyl of 1 through 3 carbon atoms.
Claim 6
Dependent Claim
9 words
The compounds of claim 3 which is ethyl 4-[1-(4-chlorophenylcarbamoylimino)-1-(methoxy)methyl]allophanate.
Claim 7
Dependent Claim
28 words
The compounds of claim 3 wherein X 1 and X 3 are oxygen; R 1 is halogen; R 2 is methyl; and R 3 is methyl or ethyl.
References Cited (Backward Citations)
US3879190A
Cited
US3823179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |