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US2444215A
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Flour-enriching composition
Assignee: Winthrop Stearns Inc
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Filing: 1943-08-19
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Granted: 1948-06-29
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Expires: 1963-08-19
Abstract
No abstract record available.
Inventors
- 👤 Robert S Whiteside
- 👤 Peter V Kolb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:32
CPC Classifications
A; A21; A21D; A21D2/00; A21D2/08; A21D2/24; A21D2/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1158934A
Cited
GB379412A
Cited
US2166797A
Cited
GB522418A
Cited
US2259543A
Cited
US2239543A
Cited
US2357069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |