US2585908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple temperature refrigeration system
Assignee: Electrolux AB
•
Filing: 1945-12-15
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Granted: 1952-02-19
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Expires: 1965-12-15
Abstract
No abstract record available.
Inventors
- 👤 Backstrom Sigurd Mattias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:25
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/10; F25B1/00; F25B1/10; F25D; F25D11/00; F25D11/02; F25D11/025; F25B2400/00; F25B2400/13; F25B2400/23; Y; Y10; Y10S; Y10S62/00; Y10S62/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1976688A
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US2090417A
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US2138885A
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US2181528A
Cited
US2261682A
Cited
US2256519A
Cited
US2298029A
Cited
US2416777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |