US2443897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of sweet-potato starch
Assignee: United States Department of Agriculture
•
Filing: 1944-03-23
•
Granted: 1948-06-22
•
Expires: 1964-03-23
Abstract
No abstract record available.
Inventors
- 👤 Gregory M Dexter
- 👤 Francis H Thurber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:33
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/04; C08B30/048
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US496689A
Cited
US744479A
Cited
US1006312A
Cited
US1156801A
Cited
US1681118A
Cited
US1828334A
Cited
US2013668A
Cited
US2084250A
Cited
US2205657A
Cited
US2149802A
Cited
US2316807A
Cited
US2323077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |