Patent US3307618A successfully refreshed from Google Patents.
US3307618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature controlled storage unit
Assignee: Whirlpool Corp
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Filing: 1964-03-09
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Granted: 1967-03-07
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Richard G Hagenauer
- 👤 Marvin A Fuller
- 👤 Alexander L Reiter
- 👤 Jack I Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/042; A; A23; A23B; A23B2/00; A23B2/70; A23B2/704; A23B2/7045; A23B2/708; F24; F24F; F24F11/00; F24F11/70; F24F11/80; F24F11/81; F24F11/83; F24F11/84; F24F11/88; F25D11/00; F25D17/06; F25D29/00; F25D29/001; G; G05; G05D; G05D23/00; G05D23/19; F24F11/30; F24F2110/00; F24F2110/10; F25B; F25B2600/00; F25B2600/23; F25D2317/00; F25D2317/06; F25D2317/065; F25D2317/0655; F25D2317/066; F25D2317/0661; F25D2700/00; F25D2700/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
APPARATUS FOR STORING FOR A STORAGE PERIOD PERISHABLE ANIMAL AND PLANT MATERIALS, COMPRISING: MEANS FORMING A CONTAINER HAVING A STORAGE SPACE FOR SAID MATERIALS AND A STORAGE ATMOSPHERE; REFRIGERATING MEANS HAVING A COOLING EVAPORATOR IN COOLING RELATIONSHIP WITH SAID STORAGE SPACE FOR COOLING SAID ATMOSPHERE AND A REFRIGERANT COMPRESSOR; MEANS FOR DIRECTING REFRIGERANT THROUGH A CONDUIT FROM SAID COMPRESSOR TO SAID EVAPORATOR AND BACK TO SAID COMPRESSOR DURING A COOLING PERIOD FOR SAID SPACE; MEANS FOR DIRECTING REFRIGERANT FROM SAID COMPRESSOR THROUGH A SECOND CONDUIT BACK TO SAID COMPRESSOR DURING NON-COOLING PERIODS; AND MEANS FOR COOLING BUT NOT MATERIALLY CONDENSING THE GASEOUS REFRIGERANT IN SAID SECOND CONDUIT PRIOR TO THE RETURN OF THE COOLED GASEOUS REFRIGERANT TO THE COMPRESSOR, SAID COOLING MEANS COMPRISING A PORTION OF SAID SECOND CONDUIT IN COOLING RELATIONSHIP WITH SAID STORAGE SPACE FOR COOLING BY SAID ATMOSPHERE, SAID PORTION BEING SPACED FROM SAID EVAPORATOR.
Claim 2
Dependent Claim
148 words
APPARATUS FOR STORING FOR A STORAGE PERIOD PERISHABLE ANIMAL AND PLANT MATERIALS, COMPRISING: MEANS FORMING A CONTAINER HAVING A STORAGE SPACE FOR SAID MATERIALS AND A STORAGE ATMOSPHERE; REFRIGERATING MEANS HAVING A COOLING EVAPORATOR IN COOLING RELATIONSHIP WITH SAID STORAGE SPACE FOR COOLING SAID ATMOSPHERE AND A REFRIGERANT COMPRESSOR; MEANS FOR DIRECTING REFRIGERANT THROUGH A CONDUIT FROM SAID COMPRESSOR TO SAID EVAPORATOR AND BACK TO SAID COMPRESSOR DURING A COOLING PERIOD FOR SAID SPACE; MEANS FOR DIRECTING REFRIGERANT FROM SAID COMPRESSOR THROUGH A SECOND CONDUIT BACK TO SAID COMPRESSOR DURING NON-COOLING PERIODS; AND MEANS FOR COOLING BUT NOT MATERIALLY CONDENSING THE GASEOUS REFRIGERANT IN SAID SECOND CONDUIT PRIOR TO THE RETURN OF THE COOLED GASEOUS REFRIGERANT TO THE COMPRESSOR, SAID COOLING MEANS COMPRISING A PORTION OF SAID SECOND CONDUIT IN COOLING RELATIONSHIP WITH SAID STORAGE SPACE FOR COOLING BY SAID ATMOSPHERE, SAID PORTION BEING SPACED FROM 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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |