Patent US2440397A successfully refreshed from Google Patents.
US2440397A
Expired / Lapsed
US
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Immersion type refrigerating device
Assignee: Sugar Creek Creamery Co
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Filing: 1944-05-06
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Granted: 1948-04-27
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Expires: 1964-05-06
Abstract
No abstract record available.
Inventors
- 👤 James S Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:44
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; F25D31/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1020759A
Cited
US1738953A
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US1959120A
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US2299414A
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US2319429A
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US2283904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |