US3372003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for producing silicon single crystals for semiconductor
Assignee: JNC Corp
•
Filing: 1964-07-17
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Granted: 1968-03-05
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Expires: 1984-07-17
Abstract
No abstract record available.
Inventors
- 👤 Yamase Hideo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:59
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/30; C30B15/20; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1004; Y10T117/1024; Y10T117/1032; Y10T117/1056; Y10T117/106; Y10T117/1064
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |