Patent US3200600A successfully refreshed from Google Patents.
US3200600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric ice-freezer
Assignee: Individual
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Filing: 1964-07-01
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Granted: 1965-08-17
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Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 Thore M Elfving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:30
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; F25B21/04; F25C; F25C1/00; F25C1/04; H; H10; H10N; H10N10/00; H10N10/10; H10N10/13; Y; Y02; Y02P; Y02P60/00; Y02P60/80; Y02P60/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A THERMOELECTRIC HEAT PUMP ASSEMBLY COMPRISING A PLURALITY OF BODIES OF SEMICONDUCTIVE MATERIAL OF OPPOSITE CONDUCTIVITY TYPES, HOT AND COLD JUNCTION BRIDGES CONNECTED BETWEEN BODIES OF OPPOSITE CONDUCTIVITY TYPE, SAID COLD JUNCTION BRIDGES BEING IN THE FORM OF METAL CONTAINERS FOR RECEIVING A LIQUID TO BE COOLED WITH OPPOSITE WALS OF SAID COLD JUNCTION BRIDGES CONNECTED DIRECTLY TO THE BODIES OF SEMICONDUCTIVE MATERIAL.
Claim 2
Dependent Claim
63 words
A THERMOELECTRIC HEAT PUMP ASSEMBLY COMPRISING A PLURALITY OF BODIES OF SEMICONDUCTIVE MATERIAL OF OPPOSITE CONDUCTIVITY TYPES, HOT AND COLD JUNCTION BRIDGES CONNECTED BETWEEN BODIES OF OPPOSITE CONDUCTIVITY TYPE, SAID COLD JUNCTION BRIDGES BEING IN THE FORM OF METAL CONTAINERS FOR RECEIVING A LIQUID TO BE COOLED WITH OPPOSITE WALS OF SAID COLD JUNCTION BRIDGES CONNECTED DIRECTLY TO THE BODIES OF SEMICONDUCTIVE MATERIAL.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |