Patent US2758038A successfully refreshed from Google Patents.
US3064341A
Expired / Lapsed
US
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Semiconductor devices
Assignee: International Business Machines Corp
•
Filing: 1956-12-26
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Granted: 1962-11-20
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Expires: 1976-12-26
Abstract
No abstract record available.
Inventors
- 👤 Frank H Masterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0441; H10P95/00; H10W; H10W72/00; H10W72/20; H10W76/00; H10W76/10; H10W76/12; H10W76/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2765516A
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US2699594A
Cited
US2793332A
Cited
US2832016A
Cited
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US2796563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |