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US2492601A
Expired / Lapsed
US
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Portable refrigerator
Assignee: FREEZ PAK CORP
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Filing: 1947-07-24
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Granted: 1949-12-27
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Expires: 1967-07-24
Abstract
No abstract record available.
Inventors
- 👤 Steel John Fosse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:26
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D2400/00; F25D2400/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190521460A
Cited
US1672901A
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US1743896A
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US2029175A
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US2237007A
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US2244475A
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US2392727A
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US2430692A
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US2436389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |