US2672023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-temperature refrigerating apparatus
Assignee: Motors Liquidation Co
•
Filing: 1952-02-23
•
Granted: 1954-03-16
•
Expires: 1972-02-23
Abstract
No abstract record available.
Inventors
- 👤 James W Jacobs
- 👤 Clifford H Wurtz
- 👤 John H Heidorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D11/022; F25D11/025; F25B; F25B2500/00; F25B2500/31; F25D2400/00; F25D2400/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2167442A
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US2163744A
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US2289728A
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US2246956A
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US2292405A
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US2400135A
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US2433188A
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US2488161A
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US2586853A
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US2455850A
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US2500778A
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US2644314A
Cited
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 |