US2682554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of trialkyl trithiophosphites
Assignee: Phillips Petroleum Co
•
Filing: 1948-12-28
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Granted: 1954-06-29
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Expires: 1968-12-28
Abstract
No abstract record available.
Inventors
- 👤 Willie W Crouch
- 👤 Robert T Werkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:50
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/10; A01N57/12; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/201; C07F9/202; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS WHICH COMPRISES REACTING A PHOSPHORUS TRIHALIDE SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS TRICHLORIDE, PHOSPHORUS TRIBROMIDE, AND PHOSPHORUS TRI-IODIDE WITH FROM FIVE TO EIGHT MOLS PER MOL OF PHOSPHORUS TRIHALIDE OF AN ALKYL MERCAPTAN CONTAINING FROM THREE TO FIVE CARBON ATOMS PER MOLECULE IN THE ABSENCE OF AN ADDED SOLVENT FOR SUCH A TEMPERATURE AND TIME AS TO PRODUCE THE CORRESPONDING TRIALKYL TRITHIOPHOSPHITE.
Claim 2
Dependent Claim
65 words
A PROCESS WHICH COMPRISES REACTING A PHOSPHORUS TRIHALIDE SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS TRICHLORIDE, PHOSPHORUS TRIBROMIDE, AND PHOSPHORUS TRI-IODIDE WITH FROM FIVE TO EIGHT MOLS PER MOL OF PHOSPHORUS TRIHALIDE OF AN ALKYL MERCAPTAN CONTAINING FROM THREE TO FIVE CARBON ATOMS PER MOLECULE IN THE ABSENCE OF AN ADDED SOLVENT FOR SUCH A TEMPERATURE AND TIME AS TO PRODUCE THE CORRESPONDING TRIALKYL TRITHIOPHOSPHITE.
References Cited (Backward Citations)
US2321307A
Cited
US2504165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |