Patent US2672018A successfully refreshed from Google Patents.
US2672018A
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Two-temperature refrigerating apparatus
Assignee: Motors Liquidation Co
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Filing: 1950-11-03
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Granted: 1954-03-16
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Expires: 1970-11-03
Abstract
No abstract record available.
Inventors
- 👤 James W Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:56
CPC Classifications
F; F25; F25B; F25B5/00; F25B41/00; F25B41/20; F25D; F25D11/00; F25D11/02; F25D11/022; G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/121; G05D23/122; F25D2400/00; F25D2400/04; F25D2700/00; F25D2700/12; F25D2700/122; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/778; Y10T137/7781; Y10T137/7782; Y10T137/7837; Y10T137/7838; Y10T137/7846
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2038198A
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US2036756A
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US2050959A
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US2154299A
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US2181276A
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US2352798A
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US2449688A
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US2503922A
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US2580220A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |