US3381114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for manufacturing epitaxial crystals
Assignee: NEC Corp
•
Filing: 1964-12-18
•
Granted: 1968-04-30
•
Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Nakanuma Sho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:50
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/62; C; C30; C30B; C30B25/00; C30B25/02; C30B25/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US563032A
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US1638857A
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US1988845A
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GB361960A
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GB425232A
Cited
US2282226A
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CH256198A
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US2596327A
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US3146123A
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US3222217A
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US3151006A
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US3208888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |