Patent US3721955A successfully refreshed from Google Patents.
US2647375A
Expired / Lapsed
US
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Two-temperature refrigerator with automatic defrosting
Assignee: Lanteris Space LLC
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Filing: 1950-05-13
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Granted: 1953-08-04
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Expires: 1970-05-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Elmer W Zearfoss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:21
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D21/00; F25D21/002; F25D21/14; F25D2317/00; F25D2317/06; F25D2317/066; F25D2317/0665; F25D2700/00; F25D2700/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2008628A
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US2126285A
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US2080387A
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US2124268A
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US1913433A
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US1956070A
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US2089608A
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US2178336A
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US2506448A
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US2511419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |