US3888951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
O-aryl-thiono alkanephosphonic acid ester-formamidines
Assignee: Bayer AG
•
Filing: 1974-01-09
•
Granted: 1975-06-10
•
Expires: 1994-01-09
Abstract
Abstract O-aryl-thionoalkanephosphonic acid ester-formamidines or iminoethers of the formula IN WHICH R is lower alkyl, R'' is lower alkoxy, mono-lower alkyl-amino or di-lower-amino, and Ar is optionally halogen-substituted phenyl, WHICH POSSESS INSECTICIDAL, ACARICIDAL AND NEMATOCIDAL PROPERTIES.
Inventors
- 👤 Hellmut Hoffmann
- 👤 Ingeborg Hammann
- 👤 Bernhard Homeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:26
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/44
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
8 words
AN O-ARYL-THIONALKANEPHOSPHIONIC ACID ESTERIMIDE DERIVATIVE OF THE FORMULA
Claim 2
Dependent Claim
8 words
AN O-ARYL-THIONALKANEPHOSPHIONIC ACID ESTERIMIDE DERIVATIVE OF THE FORMULA
Claim 3
Dependent Claim
35 words
A compound according to claim 1 in which R is alkyl of 1 to 3 carbon atoms, R'' is monoalkylamino or dialkylamino with 1 to 3 carbon atoms per alkyl moiety, and Ar is chlorophenyl.
Claim 4
Dependent Claim
16 words
The compound according to claim 1 wherein such compound is O-(3-chlorophenyl)-N-(N'',N''-dimethylaminomethylidene)-thionoethanephosphonic acid esterimide of the formula
Claim 5
Dependent Claim
17 words
The compound according to claim 1 wherein such compound is O-(4-chlorophenyl)-N-(N'',N''-dimethylaminomethylidene) -thionomethanephosphonic acid esterimide of the formula
Claim 6
Dependent Claim
17 words
The compound according to claim 1 wherein such compound is O-(2,4,5-trichlorophenyl)-N-(N'',N''-dimethylaminomethylidene) -thionoethanephosphonic acid ester-imide of the formula
Claim 7
Dependent Claim
16 words
The compound according to claim 1 wherein such compound is O-(3-chlorophenyl)-N-(N'',N''-diethylaminomethylidene)-thionomethanephosphonic acid ester-imide of the formula
References Cited (Backward Citations)
US3801679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |