Patent US3671547A successfully refreshed from Google Patents.
US3671547A
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Dialkyl dihydrothienyl phosphates
Assignee: Chevron USA Inc
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Filing: 1969-12-15
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Granted: 1972-06-20
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Expires: 1989-12-15
Abstract
Abstract WHEREIN R and R1 and alkyl of 1 to 4 carbon atoms, R2 is hydrogen, halogen of atomic number 17 to 35 or alkyl of one to three carbon atoms and R3, R4 and R5 are hydrogen or alkyl or one to three carbon atoms and n is 0, 1 or 2. These phosphates are insecticidal. Compound of the formula:
Inventors
- 👤 Lawrence E Stevick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:07
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6553; C07F9/655345; A; A01; A01N; A01N57/00; A01N57/10; A01N57/16; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/26; C07D333/30; C07D333/32; C07D333/46; C07D333/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
10 words
The compound of claim 1 wherein said halogen is chlorine.
Claim 2
Dependent Claim
28 words
The compound of claim 1 wherein n is 0, R and R1 are the same and are methyl or ethyl, and R2, R3, R4 and R5 are hydrogen.
Claim 3
Dependent Claim
34 words
The compound of claim 1 wherein n is 0, R and R1 are the same and are methyl or ethyl, R2 is chlorine, R3 is hydrogen or methyl, and R4 and R5 are hydrogen.
Claim 4
Dependent Claim
32 words
The compound of claim 1 wherein n is 2, R and R1 are the same and are methyl or ethyl, R2 is hydrogen or chlorine, and R3, R4 and R5 are hydrogen.
Claim 5
Dependent Claim
24 words
The compound of claim 1 wherein R and R1 are ethyl, n is 1, R2 is chlorine and R3, R4 and R5 are hydrogen.
Claim 6
Dependent Claim
30 words
The compound of claim 1 wherein R and R1 are the same and are methyl or ethyl, R2, R3 and R4 are hydrogen, R5 is methyl, and n is 0.
References Cited (Backward Citations)
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Cited
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Cited
US3234238A
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US3228965A
Cited
US3341553A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |