US2496459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption or adsorption refrigeration
Assignee: KLEEN REFRIGERATOR Inc
•
Filing: 1942-06-06
•
Granted: 1950-02-07
•
Expires: 1962-06-06
Abstract
No abstract record available.
Inventors
- 👤 Kleen Nils Erland Af
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:33
CPC Classifications
F; F25; F25B; F25B17/00; F25B17/08; F25B49/00; F25B49/04; F25B49/046; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2088277A
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US2087939A
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US2131119A
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US2224053A
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GB520977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |