Patent US2886748A successfully refreshed from Google Patents.
US2886748A
Expired / Lapsed
US
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Semiconductor devices
Assignee: RCA Corp
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Filing: 1954-03-15
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Granted: 1959-05-12
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Loy E Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D10/00; H10D99/00; H10P; H10P10/00; H10P52/00; H10P95/00; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W72/00; H10W76/00; H10W76/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563503A
Cited
US2560579A
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US2666814A
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US2680159A
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US2663806A
Cited
US2695930A
Cited
US2713132A
Cited
US2773224A
Cited
US2848665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |