US3547716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isolation in epitaxially grown monolithic devices
Assignee: International Business Machines Corp
•
Filing: 1968-09-05
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Granted: 1970-12-15
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Expires: 1988-09-05
Abstract
No abstract record available.
Inventors
- 👤 David Dewitt
- 👤 Harlan R Gates
- 👤 Alan Platt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:10
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D62/13; H10D62/137; H10W; H10W10/00; H10W10/01; H10W10/031; H10W10/30; Y; Y10; Y10S; Y10S148/00; Y10S148/037; Y10S148/085; Y10S148/151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3260902A
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US3335341A
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US3341755A
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US3312882A
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US3379584A
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US3327182A
Cited
US3370995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |