US2637655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isolating caramel coloring compounds
Assignee: Union Starch and Refining Co
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Filing: 1950-07-19
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Granted: 1953-05-05
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Expires: 1970-07-19
Abstract
No abstract record available.
Inventors
- 👤 Cleland James Edwin
- 👤 Joseph B Longenecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:37
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/32; Y; Y10; Y10S; Y10S127/00; Y10S127/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE PROCESS OF ISOLATING THE ESSENTIAL COLORING COMPOUNDS FROM CARAMELIZED SYRUPS HAVING A TINCTORIAL POWER OF 18-40 COMPRISING MIXING THE SYRUP WITH AN ALCOHOL MIXTURE COMPRISING 3-5 PARTS OF AN ALCOHOL WHICH IS MISCIBLE WITH WATER AND CONTAINS 1 TO 2 CARBON ATOMS TO 1 PART OF A HIGHER MONOHYDRIC ALCOHOL OF 2-6 CARBON ATOMS WHICH IS MISCIBLE WITH WATER, SAID ALCOHOL MIXTURE CONTAINING 5-32% BY VOLUME OF WATER, PERMITTING THE MIX TO SEPARATE INTO TWO LAYERS WHEREBY THE CARAMEL COLOR COMPOUNDS ARE CONCENTRATED IN THE LOWER LAYER, SEPARATING THE TWO LAYERS OF LIQUID, AND SEPARATING THE SOLID MATERIAL FROM THE LOWER LAYER.
Claim 2
Dependent Claim
103 words
THE PROCESS OF ISOLATING THE ESSENTIAL COLORING COMPOUNDS FROM CARAMELIZED SYRUPS HAVING A TINCTORIAL POWER OF 18-40 COMPRISING MIXING THE SYRUP WITH AN ALCOHOL MIXTURE COMPRISING 3-5 PARTS OF AN ALCOHOL WHICH IS MISCIBLE WITH WATER AND CONTAINS 1 TO 2 CARBON ATOMS TO 1 PART OF A HIGHER MONOHYDRIC ALCOHOL OF 2-6 CARBON ATOMS WHICH IS MISCIBLE WITH WATER, SAID ALCOHOL MIXTURE CONTAINING 5-32% BY VOLUME OF WATER, PERMITTING THE MIX TO SEPARATE INTO TWO LAYERS WHEREBY THE CARAMEL COLOR COMPOUNDS ARE CONCENTRATED IN THE LOWER LAYER, SEPARATING THE TWO LAYERS OF LIQUID, AND SEPARATING THE SOLID MATERIAL FROM THE LOWER LAYER.
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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |