Patent US3257665A successfully refreshed from Google Patents.
US3257665A
Expired / Lapsed
US
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Manufacture of dextrose
Assignee: Unilever Bestfoods North America
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Filing: 1962-11-23
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Granted: 1966-06-21
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Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Leo R Idaszak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:52
CPC Classifications
C; C07; C07H; C07H3/00; C07H3/02; B; B01; B01D; B01D9/00; B01D9/0018; B01D9/0022; B01D9/0036; C13; C13K; C13K1/00; C13K1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A PROCESS FOR CONTINUOUSLY CRYSTALLIZING DEXTROSE FROM A DEXTROSE CONTAINING LIQUOR WHICH COMPRISES CONTINUOUSLY EVAPORATING A DEXTROSE SUPPLYLIQUOR UNTIL THE DRY SUBSTANCE CONTENT OF THE LIQUOR AT THE BEGINNING OF THE CYCLE IS ABOUT 74 TO ABOUT 85 PERCENT AND THE SUPERSATURATION WITH RESPECT TO DEXTROSE IS ABOUT 10 TO ABOUT 65 PERCENT, IN A VESSEL HAVING MEANS FOR CONTINUOUSLY AND SIMULTANEOUSLY EVAPORATING A LIQUOR AND PERMITTING CRYSTALLIZATION THEREOF IN A SINGLE CHAMBER; INDUCING CRYSTALLIZATION TO START IN THE CYCLE OF CRYSTRALLIZATION; ALLOWING CRYSTALS TO FORM UNTIL THE CRYSTAL PHASE YIELD IS ABOUT 5 TO ABOUT 65 PERCENT; AND MAINTAINING SAID CRYSTAL PHASE YIELD BY CONTINUOUSLY DISCHARGING MASSECUITE AND SIMULTANEOUSLY ADDING TO, AND EVAPORATING SUPPLY LIQUOR IN THE VESSEL AT SUCH A RATE THAT SUPERSATURATION, DRY SUBSTANCE CONTENT OF THE MOTHER LIQUOR, AND TEMPERATURE REMAIN CONSTANT FOR SAID CRYSTAL PHASE YIELD; SAID SUPPLY LIQUOR HAVING A DENSITY OF ABOUT 18 TO 37* BAUME AND A DEXTROSE CONTENT ABOVE ABOUT 70 PERCENT, ON A DRY BASIS.
Claim 2
Dependent Claim
165 words
A PROCESS FOR CONTINUOUSLY CRYSTALLIZING DEXTROSE FROM A DEXTROSE CONTAINING LIQUOR WHICH COMPRISES CONTINUOUSLY EVAPORATING A DEXTROSE SUPPLYLIQUOR UNTIL THE DRY SUBSTANCE CONTENT OF THE LIQUOR AT THE BEGINNING OF THE CYCLE IS ABOUT 74 TO ABOUT 85 PERCENT AND THE SUPERSATURATION WITH RESPECT TO DEXTROSE IS ABOUT 10 TO ABOUT 65 PERCENT, IN A VESSEL HAVING MEANS FOR CONTINUOUSLY AND SIMULTANEOUSLY EVAPORATING A LIQUOR AND PERMITTING CRYSTALLIZATION THEREOF IN A SINGLE CHAMBER; INDUCING CRYSTALLIZATION TO START IN THE CYCLE OF CRYSTRALLIZATION; ALLOWING CRYSTALS TO FORM UNTIL THE CRYSTAL PHASE YIELD IS ABOUT 5 TO ABOUT 65 PERCENT; AND MAINTAINING SAID CRYSTAL PHASE YIELD BY CONTINUOUSLY DISCHARGING MASSECUITE AND SIMULTANEOUSLY ADDING TO, AND EVAPORATING SUPPLY LIQUOR IN THE VESSEL AT SUCH A RATE THAT SUPERSATURATION, DRY SUBSTANCE CONTENT OF THE MOTHER LIQUOR, AND TEMPERATURE REMAIN CONSTANT FOR SAID CRYSTAL PHASE YIELD; SAID SUPPLY LIQUOR HAVING A DENSITY OF ABOUT 18 TO 37* BAUME AND A DEXTROSE CONTENT ABOVE ABOUT 70 PERCENT, ON A DRY BASIS.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |