US2435503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying of frozen materials
Assignee: MICHAEL REESE RES FOUNDATION
•
Filing: 1943-09-30
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Granted: 1948-02-03
•
Expires: 1963-09-30
Abstract
No abstract record available.
Inventors
- 👤 Sidney O Levinson
- 👤 Oppenheimer Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/12; A23L2/14; A23B; A23B5/00; A23B5/02; A23B5/03; F; F26; F26B; F26B5/00; F26B5/04; F26B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1284218A
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GB190512642A
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US1225212A
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US1458403A
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GB163549A
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US1771139A
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US2060389A
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US2172059A
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US2333850A
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US2354200A
Cited
US2292447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |