US2457642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating lactalbumin
Assignee: American Seal Kap Corp of Delaware
•
Filing: 1946-04-08
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Granted: 1948-12-28
•
Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 George P Butterfield
- 👤 Lois A Thorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:53
CPC Classifications
A; A23; A23J; A23J3/00; A23J3/04; A23J3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1218190A
Cited
US1754825A
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US2006699A
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US2115505A
Cited
US2381407A
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US2353946A
Cited
US2391559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-28 | 1952-06-28 | 1952-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-28 | 1956-06-28 | 1956-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-28 | 1960-06-28 | 1960-12-28 | $7700.00 | Window Closed / Lapsed |