US2477255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of proteins
Assignee: Armour and Co
•
Filing: 1947-10-10
•
Granted: 1949-07-26
•
Expires: 1967-10-10
Abstract
No abstract record available.
Inventors
- 👤 Havard L Keil
- 👤 Ingraham Joseph Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:01
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0071; A62D1/0078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2158499A
Cited
US2324951A
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US1754825A
Cited
US2151398A
Cited
US2212470A
Cited
US2381407A
Cited
US2405438A
Cited
US2431256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |