US2993080A
Expired / Lapsed
US
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Thermoelectric system
Assignee: Licentia Patent Verwaltungs GmbH
•
Filing: 1959-01-23
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Granted: 1961-07-18
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Expires: 1979-01-23
Abstract
No abstract record available.
Inventors
- 👤 Poganski Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:51
CPC Classifications
H; H10; H10N; H10N10/00; F; F25; F25B; F25B21/00; F25B21/02; H10N10/10; H10N10/17; F25B2321/00; F25B2321/02; F25B2321/023; F25B2321/025; F25B2321/0251
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT23227B
Cited
FR371523A
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US1818437A
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US2597752A
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US2734344A
Cited
US2884762A
Cited
US2886618A
Cited
US2844638A
Cited
US2762857A
Cited
US2749716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |