US3248889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peltier cooling device
Assignee: US Philips Corp
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Filing: 1964-09-22
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Granted: 1966-05-03
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Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Zimmermann Klaus Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:04
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/10; H10N10/13; F; F25; F25B; F25B21/00; F25B21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PELTIER COOLING DEVICE CONSTITUTED OF A SERIES OF N-TYPE AND P-TYPE CONDUCTIVE ELEMENTS AND HAVING A PAIR OF CURRENT SUPPLY LEADS COMPRISING AT LEAST ONE PELTIER ELEMENT N-TYPE CONDUCTIVE CONNECTED BETWEEN ONE OF SAID CURRENT SUPPLY LEADS AND AN N-TYPE CONDUCTIVE ELEMENT OF SAID COOLING DEVICE, WHEREBY THE FIRST N-TYPE CONDUCTIVE IS THE COLD SIDE OF SAID PELTIER ELEMENT BEING CONNECTED TO SAID COOLING DEVICE.
Claim 2
Dependent Claim
66 words
A PELTIER COOLING DEVICE CONSTITUTED OF A SERIES OF N-TYPE AND P-TYPE CONDUCTIVE ELEMENTS AND HAVING A PAIR OF CURRENT SUPPLY LEADS COMPRISING AT LEAST ONE PELTIER ELEMENT N-TYPE CONDUCTIVE CONNECTED BETWEEN ONE OF SAID CURRENT SUPPLY LEADS AND AN N-TYPE CONDUCTIVE ELEMENT OF SAID COOLING DEVICE, WHEREBY THE FIRST N-TYPE CONDUCTIVE IS THE COLD SIDE OF SAID PELTIER ELEMENT BEING CONNECTED TO SAID COOLING DEVICE.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |