US3385733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of caramel color
Assignee: DD Williamson and Co Inc
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Filing: 1964-07-09
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Granted: 1968-05-28
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Expires: 1984-07-09
Abstract
No abstract record available.
Inventors
- 👤 Ackermann Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:47
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
93 words
THE CONTINUOUS PROCESS OF PRODUCING CARAMEL COLOR WHICH COMPRISES, PREPARING A SYRUP OF CARBONHYDRATE FOOD MATERIAL, MIXING THEREWITH A CARAMELIZATION CATALYST, PUMPING THE MIXTURE THROUGH A HEAT EXCHANGER, HEATING THE MIXTURE AS IT PASSES THROUGH SAID HEAT EXCHANGER TO A CARAMELIZING TEMPERATURE IN THE RANGE OF 350* TO 1000* F. WITH A LIQUID HEAT EXCHANGE MEDIUM TO AVOID CARBONIZING SAID MIXTURE, MAINTAINING THE FLOWING MIXTURE AT THE CARAMELIZING TEMPERATURE FOR A PERIOD UP TO 300 MINUTES, DISCHARGING THE CARAMELIZED MIXTURE THROUGH A PRESSUREREDUCING VALVE, AND COOLING AND RECOVERING THE CARAMEL COLOR THUS PRODUCED.
Claim 2
Dependent Claim
93 words
THE CONTINUOUS PROCESS OF PRODUCING CARAMEL COLOR WHICH COMPRISES, PREPARING A SYRUP OF CARBONHYDRATE FOOD MATERIAL, MIXING THEREWITH A CARAMELIZATION CATALYST, PUMPING THE MIXTURE THROUGH A HEAT EXCHANGER, HEATING THE MIXTURE AS IT PASSES THROUGH SAID HEAT EXCHANGER TO A CARAMELIZING TEMPERATURE IN THE RANGE OF 350* TO 1000* F. WITH A LIQUID HEAT EXCHANGE MEDIUM TO AVOID CARBONIZING SAID MIXTURE, MAINTAINING THE FLOWING MIXTURE AT THE CARAMELIZING TEMPERATURE FOR A PERIOD UP TO 300 MINUTES, DISCHARGING THE CARAMELIZED MIXTURE THROUGH A PRESSUREREDUCING VALVE, AND COOLING AND RECOVERING THE CARAMEL COLOR THUS PRODUCED.
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |