Patent US2586579A successfully refreshed from Google Patents.
US2586579A
Expired / Lapsed
US
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Method of production of cuprous oxide and copper chlorides
Assignee: Sty-Jar Products Inc
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Filing: 1948-01-30
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Granted: 1952-02-19
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Expires: 1968-01-30
Abstract
No abstract record available.
Inventors
- 👤 Lester D Supiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:10
CPC Classifications
C; C01; C01G; C01G3/00; C01G3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF PRODUCING CUPROUS OXIDE AND CUPRIC CHLORIDE FROM MIXTURES OF CUPROUS AND CUPRIC OXIDES COMPRISING REACTING A MIXTURE OF CUPROUS AND CUPRIC OXIDES WITH HYDROCHLORIC ACID OF A CONCENTRATION LESS THAN APPROXIMATELY 18% IN THE AMOUNT UP TO 2 MOLES OF HYDROGEN CHLORIDE TO EACH MOLE OF EACH OXIDE, COOLING THE MIXTURE TO 20* C., REMOVING THE INSOLUBLE CUPROUS RESIDUE FROM THE CUPRIC CHLORIDE SOLUTION, WASHING CUPRIC CHLORIDE FROM THE RESIDUE WITH WATER COOLER THAN 20* C., FURTHER WASHING THE RESIDUE WITH WATER COOLER THAN 20* C. UNTIL CUPROUS CHLORIDE IS CONVERTED TO OTHER INSOLUBLE CUPROUS COMPOUNDS, HYDROLYZING THE RESIDUE WITH WATER HOTTER THAN 20* C. UNTIL ALL OF THE INSOLUBLE CUPROUS RESIDUE IS CONVERTED INTO CUPROUS OXIDE, DRYING THE RESIDUE.
Claim 2
Independent Claim
123 words
THE METHOD OF PRODUCING CUPROUS OXIDE AND CUPRIC CHLORIDE FROM MIXTURES OF CUPROUS AND CUPRIC OXIDES COMPRISING REACTING A MIXTURE OF CUPROUS AND CUPRIC OXIDES WITH HYDROCHLORIC ACID OF A CONCENTRATION LESS THAN APPROXIMATELY 18% IN THE AMOUNT UP TO 2 MOLES OF HYDROGEN CHLORIDE TO EACH MOLE OF EACH OXIDE, COOLING THE MIXTURE TO 20* C., REMOVING THE INSOLUBLE CUPROUS RESIDUE FROM THE CUPRIC CHLORIDE SOLUTION, WASHING CUPRIC CHLORIDE FROM THE RESIDUE WITH WATER COOLER THAN 20* C., FURTHER WASHING THE RESIDUE WITH WATER COOLER THAN 20* C. UNTIL CUPROUS CHLORIDE IS CONVERTED TO OTHER INSOLUBLE CUPROUS COMPOUNDS, HYDROLYZING THE RESIDUE WITH WATER HOTTER THAN 20* C. UNTIL ALL OF THE INSOLUBLE CUPROUS RESIDUE IS CONVERTED INTO CUPROUS OXIDE, DRYING THE RESIDUE.
References Cited (Backward Citations)
US1263728A
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 |