US3108450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration apparatus
Assignee: REVCO Inc
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Filing: 1960-09-02
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Granted: 1963-10-29
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Expires: 1980-09-02
Abstract
No abstract record available.
Inventors
- 👤 Frank P Crotser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:39
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D11/022; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25B; F25B2600/00; F25B2600/25; F25B2600/2511; F25D2317/00; F25D2317/06; F25D2317/066; F25D2317/0664; F25D2400/00; F25D2400/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
REFRIGERATION APPARATUS COMPRISING, A FIRST EVAPORATOR DISPOSED IN HEAT EXCHANGE RELATIONSHIP WITH A CHAMBER; FIRST CIRCUIT MEANS INCLUDING A COMPRESSOR HAVING HIGH AND LOW PRESSURE SIDES, CONDENSER, AND FIRST RESTRICTION MEANS OPERATIVELY CONNECTED TO CIRCULATE REFRIGERANT THROUGH SAID FIRST EVAPORATOR TO REFRIGERATE SAID CHAMBER; AUXILIARY CIRCUIT MEANS INCLUDING SECOND RESTRICTION MEANS OPERATIVELY CONNECTING A SECOND EVAPORATOR BETWEEN SAID HIGH AND LOW PRESSURE SIDES OF SAID COMPRESSOR; SAID SECOND EVAPORATOR BEING DISPOSED IN HEAT EXCHANGE RELATIONSHIP WITH SAID FIRST CIRCUIT MEANS BEFORE SAID FIRST RESTRICTION MEANS.
Claim 2
Dependent Claim
85 words
REFRIGERATION APPARATUS COMPRISING, A FIRST EVAPORATOR DISPOSED IN HEAT EXCHANGE RELATIONSHIP WITH A CHAMBER; FIRST CIRCUIT MEANS INCLUDING A COMPRESSOR HAVING HIGH AND LOW PRESSURE SIDES, CONDENSER, AND FIRST RESTRICTION MEANS OPERATIVELY CONNECTED TO CIRCULATE REFRIGERANT THROUGH SAID FIRST EVAPORATOR TO REFRIGERATE SAID CHAMBER; AUXILIARY CIRCUIT MEANS INCLUDING SECOND RESTRICTION MEANS OPERATIVELY CONNECTING A SECOND EVAPORATOR BETWEEN SAID HIGH AND LOW PRESSURE SIDES OF SAID COMPRESSOR; SAID SECOND EVAPORATOR BEING DISPOSED IN HEAT EXCHANGE RELATIONSHIP WITH SAID FIRST CIRCUIT MEANS BEFORE SAID FIRST RESTRICTION MEANS.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |