Patent US3365532A successfully refreshed from Google Patents.
US3365532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacture of phosphorodichloridothioates
Assignee: Dow Chemical Co
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Filing: 1965-03-12
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Granted: 1968-01-23
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Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Kauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:48
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD WHICH COMPRISES ADDING PORTIONWISE ESSENTIALLY ONE MOLECULAR PROPORTION OF PYRIDINE TO A FLUID MIXTURE WHICH MIXTURE COMPRISES AT LEAST ESSENTIALLY ONE MOLECULAR PROPORTION OF THIOPHOSPHORYL CHLORIDE AND ESSENTIALLY ONE MOLECULAR PROPORTION OF A SECONDARY ALKANOL OF THE FORMULA: R-OH WHEREIN R REPRESENTS A SECONDARY ALKYL RADICAL BEING OF FROM 3 TO 4, BOTH INCLUSIVE, CARBON ATOMS, THEREBY FORMING A REACTION MIXTURE; AND MAINTAINING SAID REACTION MIXTURE DURING THE ADDING OF THE SAID PYRIDINE AT A TEMPERATURE OF FROM 15* TO 45*C., TO PRODUCE O-SEC-ALKYL PHOSPHORODICHLORIDOTHIOATES.
Claim 2
Independent Claim
87 words
A METHOD WHICH COMPRISES ADDING PORTIONWISE ESSENTIALLY ONE MOLECULAR PROPORTION OF PYRIDINE TO A FLUID MIXTURE WHICH MIXTURE COMPRISES AT LEAST ESSENTIALLY ONE MOLECULAR PROPORTION OF THIOPHOSPHORYL CHLORIDE AND ESSENTIALLY ONE MOLECULAR PROPORTION OF A SECONDARY ALKANOL OF THE FORMULA: R-OH WHEREIN R REPRESENTS A SECONDARY ALKYL RADICAL BEING OF FROM 3 TO 4, BOTH INCLUSIVE, CARBON ATOMS, THEREBY FORMING A REACTION MIXTURE; AND MAINTAINING SAID REACTION MIXTURE DURING THE ADDING OF THE SAID PYRIDINE AT A TEMPERATURE OF FROM 15* TO 45*C., TO PRODUCE O-SEC-ALKYL PHOSPHORODICHLORIDOTHIOATES.
References Cited (Backward Citations)
US2750399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |