US3761479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
O-pyrazolo-pyrimidine-(thiono)-phosphoric (phosphonic) acid esters
Assignee: Bayer AG
•
Filing: 1971-06-29
•
Granted: 1973-09-25
•
Expires: 1991-06-29
Abstract
Abstract IN WHICH R1 is an alkyl radical with 1 to 6 carbon atoms, R2 is an alkyl radical with 1 to 4 carbon atoms or an alkoxy radical with 1 to 6 carbon atoms, R3 is hydrogen, chlorine or bromine, and X is oxygen or sulfur, WHICH POSSESS INSECTICIDAL, ACARICIDAL, NEMATOCIDAL, FUNGICIDAL AND MOLLUSCICIDAL PROPERTIES. O-pyrazolo-pyrimidine-(thiono)-phosphoric (phosphonic)acid esters of the general formula
Inventors
- 👤 H Hoffman
- 👤 B Homeyer
- 👤 W Stendel
- 👤 I Hammann
- 👤 W Behrenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; A; A01; A01N; A01N57/00; A01N57/02; A01N57/08; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6561
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
27 words
Compounds according to clAim 1 in which R1 has 1-4 carbon atoms and R2 is a methyl, ethyl, n-propyl, iso-propyl, methoxy, ethoxy, n-butoxy, sec.-butoxy or tert.-butoxy radical.
Claim 2
Dependent Claim
19 words
Compound according to claim 1 wherein such compound is 0,0-diethyl-thionophosphoric acid ester of 2-hydroxy-3-bromo-7-methyl-pyrazolo(1,5- Alpha )pyrimidine of the formula
Claim 3
Dependent Claim
19 words
Compound according to claim 1 wherein such compound is 0,0-diethylphosphoric acid ester of 2-hydroxy-3-bromo-7-methyl-pyrazolo(1,5- Alpha )pyrimidine of the formula
Claim 4
Dependent Claim
19 words
Compound according to claim 1 wherein such compound is 0,0-diethylthionophosphoric acid ester of 2-hydroxy-3-chloro-7-methyl-pyrazolo(1,5- Alpha )pyrimidine of the formula
Claim 5
Dependent Claim
19 words
Compound according to claim 1 wherein such compound is 0,0-diethylphosphoric acid ester of 2-hydroxy-3-chloro-7-methyl-pyrazolo(1,5- Alpha )pyrimidine of the formula
Claim 6
Dependent Claim
19 words
Compound according to claim 1 wherein such compound is 0,0-dimethyl-thionophosphoric acid ester of 2-hydroxy-3-bromo-7-methyl-pyrazolo(1,5- Alpha )pyrimidine of the formula
Claim 7
Dependent Claim
19 words
Compound according to claim 1 wherein such compound is 0,0-dimethyl-thionophosphoric acid ester of 2-hydroxy-7-methyl-pyrazolo(1,5- Alpha )pyrimidine of the formula
References Cited (Backward Citations)
US3402176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |