US3336422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing thiophosphate esters
Assignee: American Potash and Chemical Corp
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Filing: 1964-06-18
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Granted: 1967-08-15
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Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 Willard D Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:12
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/20; C07F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
PROCESS COMPRISING: (A) ADMIXING AND REACTING PSCL3, ROH, IN WHICH R IS AN ALKYL SUBSTITUENT, CATALYST AND AN ACID ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF SODIUM CARBONATE AND THE OXIDES AND HYDROXIDES OF BARIUM, LITHIUM, CALCIUM AND MAGENSIUM TO PRODUCE ROPSCL2; AND (B) REACTING SAID ROPSCL2 WITH ROH IN WHICH R IS AN ALKYL SUBSTITUENT, AND AN ACID ACCEPTOR, TO PRODUCE (RO)2PSCL; (C) REACTING SAID (RO)2PSCL WITH AN ALKALI METAL SUBSTITUTED PHENATE AND; (D) RECOVERING O-ARENE-O,O-DIALKYLPHOSPHOROTHIOATE.
Claim 2
Dependent Claim
77 words
PROCESS COMPRISING: (A) ADMIXING AND REACTING PSCL3, ROH, IN WHICH R IS AN ALKYL SUBSTITUENT, CATALYST AND AN ACID ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF SODIUM CARBONATE AND THE OXIDES AND HYDROXIDES OF BARIUM, LITHIUM, CALCIUM AND MAGENSIUM TO PRODUCE ROPSCL2; AND (B) REACTING SAID ROPSCL2 WITH ROH IN WHICH R IS AN ALKYL SUBSTITUENT, AND AN ACID ACCEPTOR, TO PRODUCE (RO)2PSCL; (C) REACTING SAID (RO)2PSCL WITH AN ALKALI METAL SUBSTITUTED PHENATE AND; (D) RECOVERING O-ARENE-O,O-DIALKYLPHOSPHOROTHIOATE.
References Cited (Backward Citations)
US2692891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |