Patent US2589551A successfully refreshed from Google Patents.
US2589551A
Expired / Lapsed
US
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Two-temperature refrigerator
Assignee: Admiral Corp
•
Filing: 1950-06-16
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Granted: 1952-03-18
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Expires: 1970-06-16
Abstract
No abstract record available.
Inventors
- 👤 George K Iwashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:17
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D17/08; F25D11/00; F25D11/02; F25D11/022; F25D2400/00; F25D2400/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1798951A
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DE575535C
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US1865513A
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US1926384A
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US2101656A
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US2310117A
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US2309797A
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US2405392A
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US2416354A
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US2416777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |