US2938130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor device for heat transfer utilization
Assignee: TDK Micronas GmbH
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Filing: 1957-09-27
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Granted: 1960-05-24
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Expires: 1977-09-27
Abstract
No abstract record available.
Inventors
- 👤 Frank R Noll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:08
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/125; H10; H10D; H10D99/00; H10W; H10W40/00; H10W40/10; H10W40/60; H10W40/611; H10W40/641; H10W40/70; H10W74/00; H10W74/10; H10W74/131; H10W40/20; H10W40/231; H10W40/235
Claims Analysis
Total Claims: 0
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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) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |