US3225560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generator device for absorption refrigerating machines
Assignee: Individual
•
Filing: 1964-05-06
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Granted: 1965-12-28
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Expires: 1984-05-06
Abstract
No abstract record available.
Inventors
- 👤 Doebeli Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:58
CPC Classifications
F; F25; F25B; F25B33/00; F25B2333/00; F25B2333/002; F25B2333/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A GENERATOR DEVICE FOR ABSORPTION REFRIGERATING MACHINES COMPRISING TWO HEATING PIPES ARRANGED VERTICALLY IN IMMEDIATELY SIDE-BY-SIDE RELATION AND BEING WELDED TOGETHER SO AS TO BE IN THERMAL CONDUCTING CONTACT WITH EACH OTHER, ONE OF SAID HEATING PIPES HAVING AN ELECTRIC HEATING ELEMENT DISPOSABLE THEREIN, THE OTHER OF SAID HEATING PIPES BEING OPEN ENDED AND HAVING A GAS BURNER DISPOSED BELOW ITS LOWER OPEN END, A PUMP-PIPE OF A GAS-BUBBLE PUMP HAVING A HELICAL PORTION MADE UP
Claim 2
Dependent Claim
76 words
A GENERATOR DEVICE FOR ABSORPTION REFRIGERATING MACHINES COMPRISING TWO HEATING PIPES ARRANGED VERTICALLY IN IMMEDIATELY SIDE-BY-SIDE RELATION AND BEING WELDED TOGETHER SO AS TO BE IN THERMAL CONDUCTING CONTACT WITH EACH OTHER, ONE OF SAID HEATING PIPES HAVING AN ELECTRIC HEATING ELEMENT DISPOSABLE THEREIN, THE OTHER OF SAID HEATING PIPES BEING OPEN ENDED AND HAVING A GAS BURNER DISPOSED BELOW ITS LOWER OPEN END, A PUMP-PIPE OF A GAS-BUBBLE PUMP HAVING A HELICAL PORTION MADE UP
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |