Patent US3082131A successfully refreshed from Google Patents.
US3082131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Versatile transistor structure
Assignee: Texas Instruments Inc
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Filing: 1959-01-16
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Granted: 1963-03-19
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Expires: 1979-01-16
Abstract
No abstract record available.
Inventors
- 👤 Cornelison Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:11
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/02; C30B15/04; H; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A TRANSISTOR DEVICE COMPRISING A SEMICONDUCTOR CRYSTAL HAVING A ZONE OF ONE CONDUCTIVITY TYPE, AN ADJACENT ZONE OF OPPOSITE CONDUCTIVITY TYPE, A SECOND ZONE OF SAID ONE CONDUCTIVITY TYPE ADJACENT SAID ADJACENT ZONE, AND A SECOND ZONE OF SAID OPPOSITE CONDUCTIVITY TYPE ADJACENT SAID SECOND ZONE OF SAID ONE CONDUCTIVITY TYPE, THE CHANGES IN CONDUCTIVITY TYPE BETWEEN SAID FIRST ZONE OF ONE CONDUCTIVITY TYPE AND SAID ADJACENT ZONE AND BETWEEN SAID SECOND ZONE OF ONE CONDUCTIVITY TYPE AND SAID SECOND ZONE OF OPPOSITE CONDUCTIVITY TYPE BEING ABRUPT AND THE CHANGE IN CONDUCTIVITY TYPE BETWEEN SAID FIRST ZONE OF OPPOSITE CONDUCTIVITY TYPE AND SAID SECOND ZONE OF ONE CONDUCTIVITY TYPE BEING RELATIVELY GRADUAL.
Claim 2
Dependent Claim
112 words
A TRANSISTOR DEVICE COMPRISING A SEMICONDUCTOR CRYSTAL HAVING A ZONE OF ONE CONDUCTIVITY TYPE, AN ADJACENT ZONE OF OPPOSITE CONDUCTIVITY TYPE, A SECOND ZONE OF SAID ONE CONDUCTIVITY TYPE ADJACENT SAID ADJACENT ZONE, AND A SECOND ZONE OF SAID OPPOSITE CONDUCTIVITY TYPE ADJACENT SAID SECOND ZONE OF SAID ONE CONDUCTIVITY TYPE, THE CHANGES IN CONDUCTIVITY TYPE BETWEEN SAID FIRST ZONE OF ONE CONDUCTIVITY TYPE AND SAID ADJACENT ZONE AND BETWEEN SAID SECOND ZONE OF ONE CONDUCTIVITY TYPE AND SAID SECOND ZONE OF OPPOSITE CONDUCTIVITY TYPE BEING ABRUPT AND THE CHANGE IN CONDUCTIVITY TYPE BETWEEN SAID FIRST ZONE OF OPPOSITE CONDUCTIVITY TYPE AND SAID SECOND ZONE OF ONE CONDUCTIVITY TYPE BEING RELATIVELY GRADUAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |