Patent US2175570A successfully refreshed from Google Patents.
Patent US3003894A successfully refreshed from Google Patents.
US3003894A
Expired / Lapsed
US
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Rendering starch fluidizable
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1959-09-17
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Granted: 1961-10-10
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Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph E C Fredrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:11
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; C08B30/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
IN FLUIDIZING STARCH POWDER WHEREIN THE POWDERED STARCH IS SUSPENDED BY MEANS OF PASSING A GAS THERETHROUGH, THE IMPROVEMENT WHICH COMPRISES ADDING TO THE STARCH POWDER A FRACTION OF ONE PERCENT BY WEIGHT OF CA3(PO4)2.
Claim 2
Dependent Claim
35 words
IN FLUIDIZING STARCH POWDER WHEREIN THE POWDERED STARCH IS SUSPENDED BY MEANS OF PASSING A GAS THERETHROUGH, THE IMPROVEMENT WHICH COMPRISES ADDING TO THE STARCH POWDER A FRACTION OF ONE PERCENT BY WEIGHT OF CA3(PO4)2.
References Cited (Backward Citations)
US2030461A
Cited
US2720465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |