US2474228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making proteinaceous and fatty foods resistant to microorganisms
Assignee: Dow Chemical Co
•
Filing: 1947-01-13
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Granted: 1949-06-28
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Expires: 1967-01-13
Abstract
No abstract record available.
Inventors
- 👤 Gerald H Coleman
- 👤 Paul A Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:52
CPC Classifications
A; A23; A23B; A23B11/00; A23B11/40; A23B11/45; A23B11/60; A23B11/65; A23B4/00; A23B4/14; A23B4/18; A23B4/20; C; C11; C11B; C11B5/00; C11B5/0021; C11B5/0028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |