Patent US3090209A successfully refreshed from Google Patents.
US3090209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Whirlpool Corp
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Filing: 1961-04-24
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Granted: 1963-05-21
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Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Earl F Hubacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:56
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25D2317/00; F25D2317/06; F25D2317/065; F25D2317/0653; F25D2317/068; F25D2317/0682; F25D2400/00; F25D2400/04; F25D2700/00; F25D2700/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
REFRIGERATING APPARATUS COMPRISING: MEANS FORMING AN AIR PASSAGE; REFRIGERATING MEANS FOR COOLING AIR IN SAID AIR PASSAGE; MEANS FORMING FIRST AND SECOND CHAMBERS; FIRST CONDUIT MEANS INTERCONNECTING SAID AIR PASSAGE AND SAID FIRST CHAMBERS; FIRST AIR MOVING MEANS FOR FLOWING AIR THROUGH SAID FIRST CONDUIT MEANS FROM SAID AIR PASSAGE TO SAID FIRST CHAMBER; SECOND CONDUIT MEANS INTERCONNECTING SAID FIRST CHAMBER AND SAID SECOND CHAMBER; SECOND AIR MOVING MEANS FOR FLOWING AIR THROUGH SAID SECOND CONDUIT MEANS FROM SAID FIRST CHAMBER TO SAID SECOND CHAMBER; AND MEANS FOR CONDUTING AIR FROM SAID CHAMBERS TO SAID AIR PASSAGE.
Claim 2
Dependent Claim
97 words
REFRIGERATING APPARATUS COMPRISING: MEANS FORMING AN AIR PASSAGE; REFRIGERATING MEANS FOR COOLING AIR IN SAID AIR PASSAGE; MEANS FORMING FIRST AND SECOND CHAMBERS; FIRST CONDUIT MEANS INTERCONNECTING SAID AIR PASSAGE AND SAID FIRST CHAMBERS; FIRST AIR MOVING MEANS FOR FLOWING AIR THROUGH SAID FIRST CONDUIT MEANS FROM SAID AIR PASSAGE TO SAID FIRST CHAMBER; SECOND CONDUIT MEANS INTERCONNECTING SAID FIRST CHAMBER AND SAID SECOND CHAMBER; SECOND AIR MOVING MEANS FOR FLOWING AIR THROUGH SAID SECOND CONDUIT MEANS FROM SAID FIRST CHAMBER TO SAID SECOND CHAMBER; AND MEANS FOR CONDUTING AIR FROM SAID CHAMBERS TO SAID AIR PASSAGE.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |