US2586655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
S-alkoxymethyl-o, o'-dialkyldithiophosphates
Assignee: Wyeth Holdings LLC
•
Filing: 1948-03-26
•
Granted: 1952-02-19
•
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 10:44
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)
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Cited
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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 |