US2731337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal composition comprising 3-(p-chlorophenyl)-1,1-dimethylurea
Assignee: Monsanto Chemicals Ltd
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Filing: 1951-11-26
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Granted: 1956-01-17
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Expires: 1971-11-26
Abstract
No abstract record available.
Inventors
- 👤 Henry L Morrill
- 👤 Ferdinand B Zienty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:36
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/08; A01N47/28; A01N47/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A PROCESS FOR PREPARING FREE-FLOWING HERBICIDAL COMPOSITIONS CONTAINING 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA AND A SOLID ABSORBENT CARRIER, THE STEP COMPRISING INTIMATELY MIXING 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA, A MONO-HYDROXY SUBSTITUTED AROMATIC COMPOUND, AND A SOLID ABSORBENT CARRIER, IN PROPORTINS TO GAVE A DRY PRODUCT, THE TEMPERATURE OF MIXING BEING BELOW THE MELTING POINT OF 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA, THE PROPORTION OF 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA IN RESPECT TO THE MONO-HYDROXY SUBSTITUTED AROMATIC COMPOUND BEING SUCH AS TO PRODUCE A HOMOGENEOUS LIQUID COMPOSITE HAVING A FREEZING POINT BELOW THAT OF 3-(P-CHLOROPHENY)1,1-DIMETHYLUREA, THE HYDROXY SUBSTITUENT OF SAID MONOHYDROXY AROMATIC COMPOUND BEING ATTACHED DIRECTLY TO THE AROMATIC NUCLEUS.
Claim 2
Dependent Claim
93 words
IN A PROCESS FOR PREPARING FREE-FLOWING HERBICIDAL COMPOSITIONS CONTAINING 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA AND A SOLID ABSORBENT CARRIER, THE STEP COMPRISING INTIMATELY MIXING 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA, A MONO-HYDROXY SUBSTITUTED AROMATIC COMPOUND, AND A SOLID ABSORBENT CARRIER, IN PROPORTINS TO GAVE A DRY PRODUCT, THE TEMPERATURE OF MIXING BEING BELOW THE MELTING POINT OF 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA, THE PROPORTION OF 3-(P-CHLOROPHENYL)-1,1-DIMETHYLUREA IN RESPECT TO THE MONO-HYDROXY SUBSTITUTED AROMATIC COMPOUND BEING SUCH AS TO PRODUCE A HOMOGENEOUS LIQUID COMPOSITE HAVING A FREEZING POINT BELOW THAT OF 3-(P-CHLOROPHENY)1,1-DIMETHYLUREA, THE HYDROXY SUBSTITUENT OF SAID MONOHYDROXY AROMATIC COMPOUND BEING ATTACHED DIRECTLY TO THE AROMATIC NUCLEUS.
References Cited (Backward Citations)
US2229948A
Cited
US2655445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |