US2797238A
Expired / Lapsed
US
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Method for preparing organic phosphinodithioic compounds
Assignee: Lubrizol Corp
•
Filing: 1954-01-26
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Granted: 1957-06-25
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Expires: 1974-01-26
Abstract
No abstract record available.
Inventors
- 👤 Clark O Miller
- 👤 Jr Casper J Dorer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:13
CPC Classifications
C; C09; C09F; C09F9/00; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/304; C10; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/06; C10M2223/061; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/08; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/25; C10N2040/46; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN THE PROCESS FOR PREPARING AROMATIC PHOSPHINODITHIOIC ACIDS THE STEPS WHICH COMPRISE REACTING AN AROMATIC COMPOUND HAVING AN IONIZATION CONSTANT LESS THAN 1X10-10 IN WATER AT 25* C., AND HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO A RESONANT AROMATIC RING STRUCTURE, WITH P2S5 IN THE PRESENCE OF AICI3 IN AMOUNTS SUCH THAT THE RATIO OF MOLES OF AICI3 TO MOLES OF P2S5 IS AT LEAST 1.
Claim 2
Dependent Claim
67 words
IN THE PROCESS FOR PREPARING AROMATIC PHOSPHINODITHIOIC ACIDS THE STEPS WHICH COMPRISE REACTING AN AROMATIC COMPOUND HAVING AN IONIZATION CONSTANT LESS THAN 1X10-10 IN WATER AT 25* C., AND HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO A RESONANT AROMATIC RING STRUCTURE, WITH P2S5 IN THE PRESENCE OF AICI3 IN AMOUNTS SUCH THAT THE RATIO OF MOLES OF AICI3 TO MOLES OF P2S5 IS AT LEAST 1.
References Cited (Backward Citations)
US2316086A
Cited
US2580430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |