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US2586655A
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S-alkoxymethyl-o, o'-dialkyldithiophosphates
Assignee: Wyeth Holdings LLC
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Filing: 1948-03-26
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Granted: 1952-02-19
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Expires: 1968-03-26
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Hook
- 👤 Philip H Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:22
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/047; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; Y; Y10; Y10S; Y10S424/00; Y10S424/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A METHOD OF PRODUCING S-METHYLALKYL ETHER AND THIOETHER TRIESTERS OF DITHIOPHOSPHOSPHORIC ACID WHICH COMPRISES CONDENSING TOGETHER AN O,ODIESTER OF DITHIOPHOSPHORIC ACID HAVING THE FORMULA
Claim 2
Independent Claim
24 words
A METHOD OF PRODUCING S-METHYLALKYL ETHER AND THIOETHER TRIESTERS OF DITHIOPHOSPHOSPHORIC ACID WHICH COMPRISES CONDENSING TOGETHER AN O,ODIESTER OF DITHIOPHOSPHORIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US1982903A
Cited
US2063629A
Cited
US2167867A
Cited
US2191996A
Cited
US2231157A
Cited
US2372244A
Cited
US2346155A
Cited
US2389718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |