US3047363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of inorganic thiocyanates
Assignee: Akzo Nobel UK PLC
•
Filing: 1960-05-06
•
Granted: 1962-07-31
•
Expires: 1980-05-06
Abstract
No abstract record available.
Inventors
- 👤 Field John Edward
- 👤 Schmidt Wilhelm Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:28
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PROCESS FOR THE MANUFACTURE OF THE THIOCYANATES OF THE ALKALI METALS AND OF CALCIUM AND BARIUM, COMPRISING REACTING AN AQUEOUS SOLUTION OF AN INORGANIC THIOCYANATE WITH A STRONG ACID IN THE PRESENCE OF AN INERT, SUBSTANTIALLY WATER-IMMISCIBLE LIQUID IN WHICH THE THIOCYANIC ACID FORMED HAS A MARKEDLY GREATER SOLUBILITY THAN IN WATER, SEPARATING THE AQUEOUS AND NON-AQUEOUS
Claim 2
Dependent Claim
58 words
A PROCESS FOR THE MANUFACTURE OF THE THIOCYANATES OF THE ALKALI METALS AND OF CALCIUM AND BARIUM, COMPRISING REACTING AN AQUEOUS SOLUTION OF AN INORGANIC THIOCYANATE WITH A STRONG ACID IN THE PRESENCE OF AN INERT, SUBSTANTIALLY WATER-IMMISCIBLE LIQUID IN WHICH THE THIOCYANIC ACID FORMED HAS A MARKEDLY GREATER SOLUBILITY THAN IN WATER, SEPARATING THE AQUEOUS AND NON-AQUEOUS
References Cited (Backward Citations)
US2179943A
Cited
US2639291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |