Patent US5822380A successfully refreshed from Google Patents.
US2257221A
Expired / Lapsed
US
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Precooling unit for perishable foodstuffs
Assignee: Individual
•
Filing: 1939-12-13
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Granted: 1941-09-30
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Expires: 1959-12-13
Abstract
No abstract record available.
Inventors
- 👤 Trice M Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:34
CPC Classifications
F; F25; F25D; F25D15/00; A; A23; A23B; A23B2/00; A23B2/80; A23B2/805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-09-29 | 1945-03-31 | 1945-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-29 | 1949-03-31 | 1949-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-29 | 1953-03-31 | 1953-09-30 | $7700.00 | Window Closed / Lapsed |