US2431256A
Expired / Lapsed
US
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Proteinaceous foam-stabilizing composition and the preparation thereof
Assignee: Armour and Co
•
Filing: 1944-11-27
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Granted: 1947-11-18
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Expires: 1964-11-27
Abstract
No abstract record available.
Inventors
- 👤 Havard L Keil
- 👤 Ingraham Joseph Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0071; A62D1/0078; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/905; Y10S516/914; Y10S516/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1495308A
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US2158499A
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US2324951A
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US2151398A
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US2212470A
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US2363794A
Cited
US2381407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |