US2624745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of esters of thiophosphoric acid
Assignee: Bayer AG
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Filing: 1949-03-26
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Granted: 1953-01-06
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Expires: 1969-03-26
Abstract
No abstract record available.
Inventors
- 👤 Schrader Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:49
CPC Classifications
C; C07; C07D; C07D311/00; C07D311/02; C07D311/04; C07D311/06; C07D311/08; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/655; C07F9/6552; C07F9/65522
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
IN A PROCESS OF MANUFACTURING AROMATIC ESTERS OF DIALKYL THIOPHOSPHORIC ACID OF HIGH INSECTICIDAL VALUE FROM DIALKYL THIOPHOSPHORYL CHLORIDES AND COMPOUNDS FROM THE GROUP CONSISTING OF NEGATIVELY SUBSTITUITED PHENOLS AND HYDROXY-COUMARINS IN THE PRESENCE OF AN ACID BINDING AGENT, THE COMPONENTS BEING DISSOLVED OR SUSPENDED IN AN INERT SOLVENT, THE IMPROVEMENT WHICH CONSISTS IN REACTING THE COMPONENTS IN THE PRESENCE OF METALLIC COPPER.
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) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |