US2510033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of phosphoric acid esters
Assignee: Monsanto Chemicals Ltd
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Filing: 1947-04-18
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Granted: 1950-05-30
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Expires: 1967-04-18
Abstract
No abstract record available.
Inventors
- 👤 Lucas P Kyrides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:05
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE PROCESS WHICH COMPRISES REACTING TOGETHER UNDER ANHYDROUS CONDITIONS AND AT A TEMPERATURE NOT HIGHER THAN 50*C. A MIXTURE CONSISTING OF P2O5, POCL3 AND A MONOHYDRIC ALCOHOL, THE AMOUNT OF P2O5 IN THE MIXTURE BEING 1 MOLE FOR EACH 1 TO 6 MOLES OF POCL3 PRESENT THEREIN AND THE AMOUNT OF ALCOHOL BEING SUFFICIENT TO COMBINE WITH THE CHLORINE ORIGINALLY PRESENT AS POCL3 TO FORM HCL, AND WITHDRAWING HCL FROM SAID MIXTURE WHILE SAID TEMPERATURE IS MAINTAINED NOT HIGHER THAN 50*C.
Claim 2
Dependent Claim
81 words
THE PROCESS WHICH COMPRISES REACTING TOGETHER UNDER ANHYDROUS CONDITIONS AND AT A TEMPERATURE NOT HIGHER THAN 50*C. A MIXTURE CONSISTING OF P2O5, POCL3 AND A MONOHYDRIC ALCOHOL, THE AMOUNT OF P2O5 IN THE MIXTURE BEING 1 MOLE FOR EACH 1 TO 6 MOLES OF POCL3 PRESENT THEREIN AND THE AMOUNT OF ALCOHOL BEING SUFFICIENT TO COMBINE WITH THE CHLORINE ORIGINALLY PRESENT AS POCL3 TO FORM HCL, AND WITHDRAWING HCL FROM SAID MIXTURE WHILE SAID TEMPERATURE IS MAINTAINED NOT HIGHER THAN 50*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |