US2587650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for defatting starch
Assignee: United States Department of Agriculture
•
Filing: 1950-07-25
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Granted: 1952-03-04
•
Expires: 1970-07-25
Abstract
No abstract record available.
Inventors
- 👤 Carl E Rist
- 👤 Howard A Davis
- 👤 Ivan A Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:24
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/04; C08B30/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
THE PROCESS WHICH COMPRISES EXTRACTING FATTY ACIDS FROM STARCHES CONTAINING THE SAME WITH A HYDROPHILIC FATTY ACID SOLVENT AT A TEMPERATURE WITHIN THE RANGE OF 105*-125* C. AND AT A GAUGE PRESSURE WITHIN THE RANGE OF 1 TO 6 ATMOSPHERES.
Claim 2
Dependent Claim
40 words
THE PROCESS WHICH COMPRISES EXTRACTING FATTY ACIDS FROM STARCHES CONTAINING THE SAME WITH A HYDROPHILIC FATTY ACID SOLVENT AT A TEMPERATURE WITHIN THE RANGE OF 105*-125* C. AND AT A GAUGE PRESSURE WITHIN THE RANGE OF 1 TO 6 ATMOSPHERES.
References Cited (Backward Citations)
US1892366A
Cited
US2280723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |