US2927936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of heavy metal salts of substituted dithiocarbamic acids
Assignee: Vanderbilt Chemicals LLC
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Filing: 1957-09-03
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Granted: 1960-03-08
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Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Harvey Allan Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:56
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/08; A01N47/10; A01N47/12; A01N47/14; C; C07; C07C; C07C333/00; C07C333/14; C07C333/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS FOR PREPARING A HEAVY METAL SALT OF A SUBSTITUTED DITHIOCARBAMIC ACID, SAID BEING SELECTED FROM THE GROUP CONSISTING OF MANGONOUS DIMETHYLDITHIOCARBAMATE, FERRIC DIMETHYLDITHIOCARBAATE, AND MANGANOUS ETHYLENEBISDITHIOCARBAMATE, SAID PROCESS COMPRISING ING REACTING A PULVERULENT WATER SOLUBLE SALT OF THE HEAVY METAL WITH A PULVERULENT ALKALI METAL SALT OF THE SUBSTITUTED DITHIOCARMABIC ACID, WHILE EXCLUDING ATMOSPHERIC OXYGEN, THE REACTION MIXTURE CONTAINING WATER IN AN AMOUNT FROM ABOUT 4% TO ABOUT 22% BY WEIGHT, THE REACTION TAKING PLACE AT A TEMPERATURE BELOW ABOUT 110*C.
Claim 2
Dependent Claim
83 words
A PROCESS FOR PREPARING A HEAVY METAL SALT OF A SUBSTITUTED DITHIOCARBAMIC ACID, SAID BEING SELECTED FROM THE GROUP CONSISTING OF MANGONOUS DIMETHYLDITHIOCARBAMATE, FERRIC DIMETHYLDITHIOCARBAATE, AND MANGANOUS ETHYLENEBISDITHIOCARBAMATE, SAID PROCESS COMPRISING ING REACTING A PULVERULENT WATER SOLUBLE SALT OF THE HEAVY METAL WITH A PULVERULENT ALKALI METAL SALT OF THE SUBSTITUTED DITHIOCARMABIC ACID, WHILE EXCLUDING ATMOSPHERIC OXYGEN, THE REACTION MIXTURE CONTAINING WATER IN AN AMOUNT FROM ABOUT 4% TO ABOUT 22% BY WEIGHT, THE REACTION TAKING PLACE AT A TEMPERATURE BELOW ABOUT 110*C.
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) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |