Patent FR348679A successfully refreshed from Google Patents.
US3522014A
Expired / Lapsed
US
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Eccentrically rotated rod holder for crucible-free zone melting
Assignee: Siemens AG
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Filing: 1966-11-28
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Granted: 1970-07-28
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Expires: 1986-11-28
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:13
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/32; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1064; Y10T117/1068; Y10T117/1072; Y10T117/1076; Y10T117/1088; Y10T279/00; Y10T279/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1999381A
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US3216805A
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US2893847A
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US2809905A
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US3134700A
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US3113841A
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US3191924A
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US3228753A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |