Patent FR2651994A1 successfully refreshed from Google Patents.
US3093981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas flow controller means for a refrigerator
Assignee: Whirlpool Corp
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Filing: 1961-07-24
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Granted: 1963-06-18
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Expires: 1981-07-24
Abstract
No abstract record available.
Inventors
- 👤 James P O'grady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/042; F25D17/045; F25D17/06; F25D17/062; F25D17/065; F25D2317/00; F25D2317/06; F25D2317/065; F25D2317/0653; F25D2400/00; F25D2400/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
REFRIGERATION APPARATUS COMPRISING: MEANS DEFINING A FIRST CHAMBER; MEANS DEFINING A SECOND CHAMBER; MEANS DEFINING AN AIR PASSAGE; MEANS FOR REFRIGERATING AIR IN SAID PASSAGE; MEANS DEFINING A THIRD CHAMBER; AIR MOVING MEANS IN SAID THIRD CHAMBER; MEANS SEQUENTIALLY INTERCONNECTING SAID FIRST CHAMBER, THIRD CHAMBER AND AIR PASSAGE TO FORM A CONTINUOUS AIR PATH TO SUPPLY REFRIGERATED AIR TO SAID FIRST CHAMBER; FIRST DUCT MEANS FOR CONDUCTING AIR FROM SAID THIRD CHAMBER TO SAID SECOND CHAMBER; SECOND DUCT MEANS FOR CONDUCTING AIR FROM SAID SECOND CHAMBER BACK TO SAID THIRD CHAMBER; AND MEANS IN EACH OF SAID DUCT MEANS FOR CONTROLLING THE RATE OF AIR FLOW THERETHROUGH.
Claim 2
Dependent Claim
107 words
REFRIGERATION APPARATUS COMPRISING: MEANS DEFINING A FIRST CHAMBER; MEANS DEFINING A SECOND CHAMBER; MEANS DEFINING AN AIR PASSAGE; MEANS FOR REFRIGERATING AIR IN SAID PASSAGE; MEANS DEFINING A THIRD CHAMBER; AIR MOVING MEANS IN SAID THIRD CHAMBER; MEANS SEQUENTIALLY INTERCONNECTING SAID FIRST CHAMBER, THIRD CHAMBER AND AIR PASSAGE TO FORM A CONTINUOUS AIR PATH TO SUPPLY REFRIGERATED AIR TO SAID FIRST CHAMBER; FIRST DUCT MEANS FOR CONDUCTING AIR FROM SAID THIRD CHAMBER TO SAID SECOND CHAMBER; SECOND DUCT MEANS FOR CONDUCTING AIR FROM SAID SECOND CHAMBER BACK TO SAID THIRD CHAMBER; AND MEANS IN EACH OF SAID DUCT MEANS FOR CONTROLLING THE RATE OF AIR FLOW THERETHROUGH.
References Cited (Backward Citations)
US2907180A
Cited
US2960844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |