US3170310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat operated absorption refrigerator
Assignee: Electrolux AB
•
Filing: 1961-08-29
•
Granted: 1965-02-23
•
Expires: 1981-08-29
Abstract
No abstract record available.
Inventors
- 👤 Cronelid Paul Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:23
CPC Classifications
F; F25; F25D; F25D11/00; F25B; F25B15/00; F25B15/10; Y; Y10; Y10S; Y10S62/00; Y10S62/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2400215A
Cited
FR1031210A
Cited
US2794331A
Cited
GB827747A
Cited
US2936508A
Cited
US2926504A
Cited
US3018638A
Cited
US3065609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |