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US3410945A
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Apparatus for zone melting of semiconductor bodies through high-frequency heating
Assignee: CKD Praha DIZ AS
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Filing: 1965-10-08
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Granted: 1968-11-12
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Karel Regner
- 👤 Josef Petrasek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:43
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/32; H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2972525A
Cited
US3270177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |