US3971648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal use of carboxyalkyl ester of N-phosphonomethyl glycine
Assignee: Monsanto Co
•
Filing: 1974-09-16
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Granted: 1976-07-27
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Expires: 1994-09-16
Abstract
Abstract Carboxyalkyl esters of N-phosphonomethyl glycine and their salts and a process for their preparation are described. These esters and salts are useful as contact herbicides.
Inventors
- 👤 John E. Franz
- 👤 Hans L. Nufer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:22
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
72 words
The herbicidal method which comprises contacting a plant with a herbicidally effective amount of a compound of the formula ##EQU2## wherein M is hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, M' and M" are hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, said organic ammonium group being derived from an organic amine having a molecular weight below about 300 and containing not more than two amine groups.
Claim 2
Dependent Claim
72 words
The herbicidal method which comprises contacting a plant with a herbicidally effective amount of a compound of the formula ##EQU2## wherein M is hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, M' and M" are hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, said organic ammonium group being derived from an organic amine having a molecular weight below about 300 and containing not more than two amine groups.
Claim 3
Dependent Claim
12 words
The herbicidal method of claim 1 wherein the compound is β-carboxyethyl-N-phosphonomethyl glycinate.
Claim 4
Dependent Claim
16 words
The herbicidal method of claim 1 wherein the compound is the monoisopropylamine salt of β-carboxyethyl-N-phosphonomethyl glycinate.
Claim 5
Dependent Claim
70 words
A herbicidal composition comprising a herbicidally effective amount of a compound of the formula ##EQU3## wherein M is hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, M' and M" are hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, said organic ammonium group being derived from an organic amine having a molecular weight below about 300 and containing not more than two amine groups, and an adjuvant.
Claim 6
Dependent Claim
70 words
A herbicidal composition comprising a herbicidally effective amount of a compound of the formula ##EQU3## wherein M is hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, M' and M" are hydrogen, alkali metal, alkaline earth metal, ammonium or organic ammonium, said organic ammonium group being derived from an organic amine having a molecular weight below about 300 and containing not more than two amine groups, and an adjuvant.
Claim 7
Dependent Claim
12 words
A herbicidal composition of claim 4 which also contains a surface-active agent.
Claim 8
Dependent Claim
12 words
A herbicidal composition of claim 4 wherein the compound is β-carboxyethyl-N-phosphonomethyl glycinate.
Claim 9
Dependent Claim
15 words
A herbicidal composition of claim 4 wherein the compound is monoisopropylamine alt of β-carboxyethyl-N-phosphonomethyl glycinate.
References Cited (Backward Citations)
US3799758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |