Patent US2381013A successfully refreshed from Google Patents.
US2381013A
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Refrigeration apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1943-11-05
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Granted: 1945-08-07
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Expires: 1963-11-05
Abstract
No abstract record available.
Inventors
- 👤 Elo C Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:27
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; B; B67; B67D; B67D1/00; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T137/2931; Y10T137/3115; Y10T137/4673; Y10T137/474; Y10T137/6416; Y10T137/6579; Y10T137/6851; Y10T137/7039; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7358; Y10T137/7368
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) | 1948-08-06 | 1949-02-05 | 1949-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-06 | 1953-02-05 | 1953-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-06 | 1957-02-05 | 1957-08-07 | $7700.00 | Window Closed / Lapsed |