US3414434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single crystal silicon on spinel insulators
Assignee: Boeing North American Inc
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Filing: 1965-06-30
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Granted: 1968-12-03
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Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Harold M Manasevit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:04
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/20; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; C; C30; C30B; C30B23/00; H10D; H10D99/00; H10P14/24; H10P14/29; H10P14/2901; H10P14/2921; H10P14/2926; H10P14/3466; Y; Y10; Y10S; Y10S148/00; Y10S148/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3173814A
Cited
US3177100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |