US2533221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caramel color separation
Assignee: Union Starch and Refining Co
•
Filing: 1947-06-06
•
Granted: 1950-12-12
•
Expires: 1967-06-06
Abstract
No abstract record available.
Inventors
- 👤 James E Cleland
- 👤 Joseph B Longenecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:29
CPC Classifications
C; C09; C09B; C09B59/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN A PROCESS OF SEPARATING ESSENTIAL COLORING COMPOUNDS FROM A CARAMELIZED WATER SOLUBLE CARBOHYDRATE MATERIAL, THE STEPS COMPRISING DISPESING SAID CARAMELIZED CARBOHYDRATE IN A SOLUTION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A WAER SOLUBLE ALCOHOL AND A SOLUBILITY REGULATING LIQUID HAVING A BOILING POINT OF FROM 30-80* C., WHEREBY THE ESSENTIAL COLORING COMPOINDS ARE PRECIPITATED.
Claim 2
Dependent Claim
56 words
IN A PROCESS OF SEPARATING ESSENTIAL COLORING COMPOUNDS FROM A CARAMELIZED WATER SOLUBLE CARBOHYDRATE MATERIAL, THE STEPS COMPRISING DISPESING SAID CARAMELIZED CARBOHYDRATE IN A SOLUTION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A WAER SOLUBLE ALCOHOL AND A SOLUBILITY REGULATING LIQUID HAVING A BOILING POINT OF FROM 30-80* C., WHEREBY THE ESSENTIAL COLORING COMPOINDS ARE PRECIPITATED.
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) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |