US3174297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus with defrost control means
Assignee: Motors Liquidation Co
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Filing: 1962-12-24
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Granted: 1965-03-23
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Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 Albert J Kuhn
- 👤 Leonard J Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/002; F25D2317/00; F25D2317/06; F25D2317/065; F25D2317/0653
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A REFRIGERATOR INCLUDING INSULATING MEANS ENCLOSING A BELOW-FREEZING COMPARTMENT AND AN ABOVE-FREEING COMPARTMENT AND DOOR MEANS FOR ACCESS TO SAID COMPARTMENTS, A REFRIGERATING SYSTEM COMPRISING LIQUEFYING MEANS AND EVAPORTATING MEANS FOR COOLING SAID COMPARTMENTS, FAN MEANS FOR CIRCULATING AIR FROM SAID ABOVEFREEZING COMPARTMENT AND SAID BELOW-FREEZING COMPARTMENT INTO HEAT TRANSFER RELATION WITH SAID EVAPORATING MEANS AND RETURNING THE AIR TO SAID COMPARTMENTS, A THERMOSTATIC AIR VALVE RESPONSIVE TO THE TEMPERATURE OF
Claim 2
Dependent Claim
71 words
A REFRIGERATOR INCLUDING INSULATING MEANS ENCLOSING A BELOW-FREEZING COMPARTMENT AND AN ABOVE-FREEING COMPARTMENT AND DOOR MEANS FOR ACCESS TO SAID COMPARTMENTS, A REFRIGERATING SYSTEM COMPRISING LIQUEFYING MEANS AND EVAPORTATING MEANS FOR COOLING SAID COMPARTMENTS, FAN MEANS FOR CIRCULATING AIR FROM SAID ABOVEFREEZING COMPARTMENT AND SAID BELOW-FREEZING COMPARTMENT INTO HEAT TRANSFER RELATION WITH SAID EVAPORATING MEANS AND RETURNING THE AIR TO SAID COMPARTMENTS, A THERMOSTATIC AIR VALVE RESPONSIVE TO THE TEMPERATURE OF
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |