Patent US3159980A successfully refreshed from Google Patents.
US3159980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator including combination evaporator fan motor and defrost control
Assignee: General Electric Co
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Filing: 1963-07-17
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Granted: 1964-12-08
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Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Douglas A Solley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A REFRIGERATOR COMPRISING A STORAGE COMPARTMENT, AN EVAPORATOR DISPOSED OUTSIDE OF SAID COMPARTMENT, CONDENSING MEANS INCLUDING A COMPRESSOR FOR NORMALLY SUPPLYING CONDENSED REFRIGERANT TO SAID EVAPORATOR, DEFROST MEANS FOR PERIODICALLY DEFROSTING SAID EVAPORATOR, A FAN FOR CIRCULATING AIR FROM SAID COMPARTMENT OVER SAID EVAPORATOR, A MOTOR FOR DRIVING SAID FAN, A MOTOR CIRCUIT FOR ENERGIZING SAID MOTOR ONLY WHEN SAID COMPRESSOR IS ENERGIZED TO SUPPLY CONDENSED REFRIGERANT TO SAID EVAPORATOR, AND DEFROST CONTROL MEANS INCLUDING TIMING MEANS DRIVEN BY SAID MOTOR FOR INITIATING OPERATION OF SAID DEFROST MEANS.
Claim 2
Dependent Claim
88 words
A REFRIGERATOR COMPRISING A STORAGE COMPARTMENT, AN EVAPORATOR DISPOSED OUTSIDE OF SAID COMPARTMENT, CONDENSING MEANS INCLUDING A COMPRESSOR FOR NORMALLY SUPPLYING CONDENSED REFRIGERANT TO SAID EVAPORATOR, DEFROST MEANS FOR PERIODICALLY DEFROSTING SAID EVAPORATOR, A FAN FOR CIRCULATING AIR FROM SAID COMPARTMENT OVER SAID EVAPORATOR, A MOTOR FOR DRIVING SAID FAN, A MOTOR CIRCUIT FOR ENERGIZING SAID MOTOR ONLY WHEN SAID COMPRESSOR IS ENERGIZED TO SUPPLY CONDENSED REFRIGERANT TO SAID EVAPORATOR, AND DEFROST CONTROL MEANS INCLUDING TIMING MEANS DRIVEN BY SAID MOTOR FOR INITIATING OPERATION OF SAID DEFROST MEANS.
References Cited (Backward Citations)
US2907180A
Cited
US3010288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |