Patent US3020123A successfully refreshed from Google Patents.
US3020123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of metal thiocyanates and werner complexes thereof
Assignee: Union Oil Company of California
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Filing: 1959-06-16
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Granted: 1962-02-06
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Expires: 1979-06-16
Abstract
No abstract record available.
Inventors
- 👤 William D Schaeffer
- 👤 Homer E Rea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:40
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/04; C07F15/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD FOR PREPARING A THIOCYANATE OF A DIVALENT METAL SELECTED FROM THE GROUP CONSISTING OF IRON, MANGANESE, COBALT AND NICKEL WHICH COMPRISES REACTING A REAGENT SALT OF SAID DIVALENT METAL WITH A MONOVALENT CATION THIOCYANATE SALT, AT A MOLAR RATIO OF THE FORMER TO THE LATTER OF ESSENTIALLY 1:2 IN AN ALCOHOLIC SOLVENT MEDIUM, SAID REAGENT SALT BEING SELECTED FROM THE CLASS CONSISTING OF SULFATES AND CHLORIDES, SAID MONOVALENT CATION BEING SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL AND AMMONIUM, AND SAID SOLVENT BEING A SATURATED ALIPHATIC ALCOHOL CONTAINING 1 TO 4 CARBON ATOMS, THEREBY FORMING A SOLUTION OF DIVALENT METAL THIOCYANATE AND PRECIPITATING AN INSOLUBLE SALT OF SAID MONOVALENT CATION FROM THE CLASS CONSISTING OF SULFATES AND CHLORIDES, AND SEPARATING SAID LAST-NAMED SALT FROM THE SOLUTION.
Claim 2
Independent Claim
129 words
A METHOD FOR PREPARING A THIOCYANATE OF A DIVALENT METAL SELECTED FROM THE GROUP CONSISTING OF IRON, MANGANESE, COBALT AND NICKEL WHICH COMPRISES REACTING A REAGENT SALT OF SAID DIVALENT METAL WITH A MONOVALENT CATION THIOCYANATE SALT, AT A MOLAR RATIO OF THE FORMER TO THE LATTER OF ESSENTIALLY 1:2 IN AN ALCOHOLIC SOLVENT MEDIUM, SAID REAGENT SALT BEING SELECTED FROM THE CLASS CONSISTING OF SULFATES AND CHLORIDES, SAID MONOVALENT CATION BEING SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL AND AMMONIUM, AND SAID SOLVENT BEING A SATURATED ALIPHATIC ALCOHOL CONTAINING 1 TO 4 CARBON ATOMS, THEREBY FORMING A SOLUTION OF DIVALENT METAL THIOCYANATE AND PRECIPITATING AN INSOLUBLE SALT OF SAID MONOVALENT CATION FROM THE CLASS CONSISTING OF SULFATES AND CHLORIDES, AND SEPARATING SAID LAST-NAMED SALT FROM THE SOLUTION.
References Cited (Backward Citations)
GB354604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |