US3236687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing sugars from starch
Assignee: Grain Processing Corp
•
Filing: 1962-07-09
•
Granted: 1966-02-22
•
Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 Norman B Smith
- 👤 Edgar N Petzold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:10
CPC Classifications
C; C13; C13K; C13K1/00; C13K1/10; B; B01; B01D; B01D9/00; B01D9/0018; B01D9/0059; C13K1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A PROCESS FOR PRODUCING SUGARS FROM STARCH WHEREIN THE STARCH IN AQUEOUS SYSTEM IS HYDROLYZED TO CONVERT THE STARCH TO SUGAR, THE HYDROLYZATE IS CLARIFIED AND CONCENTRATED BY EVAPORATION, THE IMPROVEMENT WHICH CONSISTS IN CONCENTRATING THE HYDROLYZATE AT AN ELEVATED TEMPERATURE TO A SOLIDS CONTENT ABOVE ABOUT 88 PERCENT BY WEIGHT, THEN SUBJECTING THE CONCENTRATED MATERIAL AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF A GAS TO A SHEARING STRESS TO INDUCE SOLIDIFICATION OF A CRYSTALLIN SUGAR, THEN REMOVING AT AN ELEVATED TEMPERATURE SAID CONCENTRATED MATERIAL FROM THE ACTION OF THE SHEARING STRESS, AND FINALLY RECOVERING A SOLIDIFIED CRYSTALLINE SUGAR.
Claim 2
Dependent Claim
101 words
IN A PROCESS FOR PRODUCING SUGARS FROM STARCH WHEREIN THE STARCH IN AQUEOUS SYSTEM IS HYDROLYZED TO CONVERT THE STARCH TO SUGAR, THE HYDROLYZATE IS CLARIFIED AND CONCENTRATED BY EVAPORATION, THE IMPROVEMENT WHICH CONSISTS IN CONCENTRATING THE HYDROLYZATE AT AN ELEVATED TEMPERATURE TO A SOLIDS CONTENT ABOVE ABOUT 88 PERCENT BY WEIGHT, THEN SUBJECTING THE CONCENTRATED MATERIAL AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF A GAS TO A SHEARING STRESS TO INDUCE SOLIDIFICATION OF A CRYSTALLIN SUGAR, THEN REMOVING AT AN ELEVATED TEMPERATURE SAID CONCENTRATED MATERIAL FROM THE ACTION OF THE SHEARING STRESS, AND FINALLY RECOVERING A SOLIDIFIED CRYSTALLINE SUGAR.
References Cited (Backward Citations)
US1722761A
Cited
US1870030A
Cited
US2189824A
Cited
US2429964A
Cited
US2606847A
Cited
US2901382A
Cited
US2967804A
Cited
US2970086A
Cited
US3064722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |