US3160478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for floating-zone melting
Assignee: Siemens and Halske AG
•
Filing: 1960-06-06
•
Granted: 1964-12-08
•
Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Rummel Theodor
- 👤 Heim Max
- 👤 Schauer Willibald
- 👤 Pfeifer Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:17
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/32; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1072; Y10T117/1076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2972525A
Cited
US2913561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |