US2525430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of gluten from starch
Assignee: Primary Products Ingredients Americas LLC
•
Filing: 1946-11-29
•
Granted: 1950-10-10
•
Expires: 1966-11-29
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:13
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/16; B03D1/22; B03D1/1412; B03D1/1443; B03D1/1462; C; C08; C08B; C08B30/00; C08B30/04; C08B30/042; C08B30/044; B03D2203/00; B03D2203/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN THE PROCESS FOR THE PRODUCTION OF STARCH FROM AN AQUEOUS SLURRY COMPRISING STARCH, GLUTEN AND SOLUBLES, THE SOLIDS OF WHICH SLURRY ARE PREDOMINANTLY STARCH, THE IMPROVEMENT COMPRISING SUBJECTING THE SLURRY TO FROTH FLOTATION FOR THE REMOVAL OF GLUTEN THEREFROM, AND SELECTIVELY REMOVING ONLY AN UPPER STRATA OF THE FROTH, SAID FROTH BEING COMPOSED OF AIR BUBBLES ENCAED IN LIQUID FILMS BEARING THE GLUTEN.
Claim 2
Dependent Claim
64 words
IN THE PROCESS FOR THE PRODUCTION OF STARCH FROM AN AQUEOUS SLURRY COMPRISING STARCH, GLUTEN AND SOLUBLES, THE SOLIDS OF WHICH SLURRY ARE PREDOMINANTLY STARCH, THE IMPROVEMENT COMPRISING SUBJECTING THE SLURRY TO FROTH FLOTATION FOR THE REMOVAL OF GLUTEN THEREFROM, AND SELECTIVELY REMOVING ONLY AN UPPER STRATA OF THE FROTH, SAID FROTH BEING COMPOSED OF AIR BUBBLES ENCAED IN LIQUID FILMS BEARING THE GLUTEN.
References Cited (Backward Citations)
US994497A
Cited
US1221990A
Cited
US2039605A
Cited
US2124284A
Cited
US2132251A
Cited
US2138274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |