Patent US3257236A successfully refreshed from Google Patents.
US3257236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making sugar
Assignee: National Sugar Refining Co
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Filing: 1964-07-07
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Granted: 1966-06-21
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Expires: 1984-07-07
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Schwer
- 👤 Jr George S Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:11
CPC Classifications
C; C13; C13B; C13B30/00; C13B30/02; C13B40/00; C13B40/002; C13B40/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR MANUFACTURING A DRY GRANULAR SUGAR COMPRISING THE STEP OF (1) PREPARING A SYRUP OF SUGAR IN WHICH THE SOLIDS ARE AT LEAST ABOUT 85% SUCROSE BASED ON THE WEIGHT OF THE DRY SOLIDS, (2) CONCENTRATING SAID SYRUP TO A SOLIDS CONTENT OF AT LEAST ABOUT 93% AND MAINTAINING SAID SYRUP AT A TEMPERATURE SUFFICIENT TO PREVENT SOLIDIFICATION THEREOF, (3) COOLING SAID SYRUP AT A RATE NOT MORE THAN ABOUT 10* PER MINUTE AND, DURING SAID COLLING STEP, AGITATING SAID SYRUP UNTIL IT IS COOLED TO BELOW ITS TRANSFORMATION TEMPERATURE, WHEREBY A CRUDE GRANULAR SUGAR PRODUCT IS OBTAINED, (4) MILLING SAID CRUDE GRANULAR PRODUCT UNTIL AT LEAST
Claim 2
Dependent Claim
109 words
A PROCESS FOR MANUFACTURING A DRY GRANULAR SUGAR COMPRISING THE STEP OF (1) PREPARING A SYRUP OF SUGAR IN WHICH THE SOLIDS ARE AT LEAST ABOUT 85% SUCROSE BASED ON THE WEIGHT OF THE DRY SOLIDS, (2) CONCENTRATING SAID SYRUP TO A SOLIDS CONTENT OF AT LEAST ABOUT 93% AND MAINTAINING SAID SYRUP AT A TEMPERATURE SUFFICIENT TO PREVENT SOLIDIFICATION THEREOF, (3) COOLING SAID SYRUP AT A RATE NOT MORE THAN ABOUT 10* PER MINUTE AND, DURING SAID COLLING STEP, AGITATING SAID SYRUP UNTIL IT IS COOLED TO BELOW ITS TRANSFORMATION TEMPERATURE, WHEREBY A CRUDE GRANULAR SUGAR PRODUCT IS OBTAINED, (4) MILLING SAID CRUDE GRANULAR PRODUCT UNTIL AT LEAST
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 |