Patent US3261173A successfully refreshed from Google Patents.
US3261173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Motors Liquidation Co
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Filing: 1964-07-29
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Granted: 1966-07-19
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Ira L Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:28
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/14; F25B; F25B47/00; F25B47/02; F25B47/022; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25B47/025; F25C; F25C2400/00; F25C2400/10; F25D2317/00; F25D2317/06; F25D2317/061; F25D2317/068; F25D2317/0683; F25D2321/00; F25D2321/14; F25D2321/141; F25D2321/1412; F25D2400/00; F25D2400/04; F25D2700/00; F25D2700/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A REFRIGERATOR INCLUDING AN INSULATED CABINET HAVING FIRST AND SECOND COMPARTMENTS INSULATED FROM EACH OTHER, AN EVAPORATOR, MEANS FOR CIRCULATING AIR FROM SAID FIRST AND SECOND COMPARTMENTS INTO HEAT TRANSFER WITH SAID EVAPORATOR AND RETURNING THE AIR IN PROPORTIONS TO MAINTAIN SAID FIRST COMPARTMENT AT BELOW FREEZING TEMPERATURES AND TO MAINTAIN SAID SECOND COMPARTMENT AT ABOVE FREEZING REFRIGERATING TEMPERATURES, A REFRIGERANT LIQUEFYING MEANS, SUPPLY AND RETURN CONDUIT MEANS HAVING PORTIONS IN HEAT INTERCHANGING RELATION OPERATIVELY CONNECTING SAID EVAPORATOR AND SAID LIQUEFYING MEANS, MEANS FOR DEFROSTING SAID EVAPORATOR, TEMPERATURE RESPONSIVE MEANS RESPONSIVE TO A PREDETERMINED HIGH TEMPERATURE OF SAID SECOND COMPARTMENT AND A CONCURRENT PREDETERMINED LOW TEMPERATURE OF A PART OF SAID PORTIONS IN HEAT INTERCHANGING RELATION FOR INITIATING THE FUNCTIONING OF SAID DEFROSTING MEANS, SAID PORTIONS IN HEAT INTERCHANGING RELATION COMPRISING A SUBSTANTIAL PORTION BETWEEN SAID TEMPERATURE RESPONSIVE MEANS AND SAID EVAPORATOR.
Claim 2
Dependent Claim
142 words
A REFRIGERATOR INCLUDING AN INSULATED CABINET HAVING FIRST AND SECOND COMPARTMENTS INSULATED FROM EACH OTHER, AN EVAPORATOR, MEANS FOR CIRCULATING AIR FROM SAID FIRST AND SECOND COMPARTMENTS INTO HEAT TRANSFER WITH SAID EVAPORATOR AND RETURNING THE AIR IN PROPORTIONS TO MAINTAIN SAID FIRST COMPARTMENT AT BELOW FREEZING TEMPERATURES AND TO MAINTAIN SAID SECOND COMPARTMENT AT ABOVE FREEZING REFRIGERATING TEMPERATURES, A REFRIGERANT LIQUEFYING MEANS, SUPPLY AND RETURN CONDUIT MEANS HAVING PORTIONS IN HEAT INTERCHANGING RELATION OPERATIVELY CONNECTING SAID EVAPORATOR AND SAID LIQUEFYING MEANS, MEANS FOR DEFROSTING SAID EVAPORATOR, TEMPERATURE RESPONSIVE MEANS RESPONSIVE TO A PREDETERMINED HIGH TEMPERATURE OF SAID SECOND COMPARTMENT AND A CONCURRENT PREDETERMINED LOW TEMPERATURE OF A PART OF SAID PORTIONS IN HEAT INTERCHANGING RELATION FOR INITIATING THE FUNCTIONING OF SAID DEFROSTING MEANS, SAID PORTIONS IN HEAT INTERCHANGING RELATION COMPRISING A SUBSTANTIAL PORTION BETWEEN SAID TEMPERATURE RESPONSIVE MEANS AND SAID EVAPORATOR.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |