US2484669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device relating to absorption refrigerating apparatus
Assignee: Electrolux AB
•
Filing: 1942-04-07
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Granted: 1949-10-11
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Expires: 1962-04-07
Abstract
No abstract record available.
Inventors
- 👤 Backstrom Siguard Mattias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:07
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/10; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6579; Y10T137/7287; Y10T137/7358; Y10T137/7439
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1930671A
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US1925361A
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US1846626A
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US1976202A
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US2035499A
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US2178603A
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US2181528A
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US2282684A
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US2252791A
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US2306199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |