Patent US2728034A successfully refreshed from Google Patents.
US2728034A
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Semi-conductor devices with opposite conductivity zones
Assignee: RCA Corp
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Filing: 1950-09-08
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Granted: 1955-12-20
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Expires: 1970-09-08
Abstract
No abstract record available.
Inventors
- 👤 Kurshan Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:00
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D48/00; H10D48/30; H10D48/32; H10D48/34; H10D48/345; H10D99/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A SEMI-CONDUCTOR DEVICE COMPRISING A BODY OF SEMICONDUCTING MATERIAL HAVING TWO ZONES OF THE SAME CONDUCTIVITY TYPE SEPARATED BY AN INTERMEDIATE ZONE OF THE OPPOSITE CONDUCTIVITY TYPE, A FIRST ELECTRODE IN LOW RESISTANCE CONTACT WITH ONE OF SAID TWO ZONES, A SECOND ELECTRODE IN LOW RESISTANCE CONTACT WITH THE OTHER OF SAID TWO ZONES, AND A FURTHER ELECTRODE IN CONTACT WITH ONE OF SAID TWO ZONES AND POSITIONED CLOSELY ADACENT TO SAID INTERMEDIATE ZONE.
References Cited (Backward Citations)
US2524033A
Cited
US2524035A
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US2569347A
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US2502479A
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US2502488A
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US2623103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |