US2845368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dextrinization process
Assignee: Primary Products Ingredients Americas LLC
•
Filing: 1954-05-27
•
Granted: 1958-07-29
•
Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph E C Fredrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:00
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; C08B30/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD OF DEXTRINIZING STARCH WHICH COMPRISES INTRODUCING A BED OF STARCH POWDER INTO A VESSEL, MAINTAINING AN UPWARD FLOW OF GAS THROUGH SAID BED BY INTRODUCING THE GAS FROM BENEATH SAID BED AND WITHDRAWINT IT FROM AN OUTLET ABOVE THE TOP OF SAID BED, THE UPWARD VELOCITY OF SAID GAS FLOW BEING SUFFICIENT TO SUSPEND AND VIGOROUSLY AGITATE THE STARCH PARTICLES WITHIN SAID BED BUT INSUFFICIENT TO CONVEY A SUBSTANTIAL PORTION OF THE STARCH OUT THROUGH SAID UPPER OUTLET, HEATING SAID BED OF STARCH IN SAID AGITATE CONDITION TO DEXTRINIZING TEMPERATURE AND MAINTAINING SAID DEXTRINIZING TEMPERATURE UNTIL THE DESIRED DEGREE OF DEXTRINIZATION IS OBTAINED.
Claim 2
Independent Claim
105 words
THE METHOD OF DEXTRINIZING STARCH WHICH COMPRISES INTRODUCING A BED OF STARCH POWDER INTO A VESSEL, MAINTAINING AN UPWARD FLOW OF GAS THROUGH SAID BED BY INTRODUCING THE GAS FROM BENEATH SAID BED AND WITHDRAWINT IT FROM AN OUTLET ABOVE THE TOP OF SAID BED, THE UPWARD VELOCITY OF SAID GAS FLOW BEING SUFFICIENT TO SUSPEND AND VIGOROUSLY AGITATE THE STARCH PARTICLES WITHIN SAID BED BUT INSUFFICIENT TO CONVEY A SUBSTANTIAL PORTION OF THE STARCH OUT THROUGH SAID UPPER OUTLET, HEATING SAID BED OF STARCH IN SAID AGITATE CONDITION TO DEXTRINIZING TEMPERATURE AND MAINTAINING SAID DEXTRINIZING TEMPERATURE UNTIL THE DESIRED DEGREE OF DEXTRINIZATION IS OBTAINED.
References Cited (Backward Citations)
US2735792A
Cited
GB191416362A
Cited
US1564979A
Cited
US1942544A
Cited
US2177378A
Cited
US2090187A
Cited
US2147104A
Cited
US2180968A
Cited
US2204615A
Cited
US2235683A
Cited
US2222874A
Cited
US2233243A
Cited
US2274789A
Cited
US2332345A
Cited
US2698818A
Cited
US2521215A
Cited
GB619404A
Cited
US2615906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |