Patent US2252173A successfully refreshed from Google Patents.
US2252173A
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US
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Refrigerating apparatus
Assignee: Motors Liquidation Co
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Filing: 1938-01-27
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Granted: 1941-08-12
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Expires: 1958-01-27
Abstract
No abstract record available.
Inventors
- 👤 Gibson J Lowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/006; B; B67; B67D; B67D1/00; B67D1/08; B67D1/0857; B67D1/0858; B67D1/0861; B67D1/0865; B67D1/0867; F25D17/00; F25D17/02; F25D2331/00; F25D2331/80; F25D2331/802; Y; Y10; Y10S; Y10S220/00; Y10S220/01; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-08-11 | 1945-02-10 | 1945-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-11 | 1949-02-10 | 1949-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-11 | 1953-02-10 | 1953-08-12 | $7700.00 | Window Closed / Lapsed |