US3131311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor pulse generators
Assignee: AT&T Inc
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Filing: 1960-06-21
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Granted: 1964-04-28
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Ian M Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:23
CPC Classifications
H; H10; H10D; H10D88/00; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/352
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A BISTABLE PULSE GENERATOR COMPRISING AN INTEGRATED SEMICONDUCTOR STRUCTURE INCLUDING A WAFER OF SEMICONDUCTOR MATERIAL, SAID WAFER HAVING TWO MAJOR FACES AND FOUR SUCCESSIVE ZONES OF OPPOSITE CONDUCTIVITY TYPE IN SUBSTANTIALLY PARALLEL RELATION WITH SAID FACES, ONE OF THE TERMINAL ZONES OF SAID WAFER AND A PORTION OF THE INTERMEDIATE ZONE ADJACENT TO SAID ONE TERMINAL ZONE BEING CONTIGUOUS TO ONE FACE OF SAID WAFER WHEREBY ONE PORTION OF THE WAFER INCLUDES FOUR SUCCESSIVE ZONES BETWEEN THE MAJOR FACES AND THE OTHER PORTION INCLUDES THREE SUCCESSIVE ZONES BETWEEN THE MAJOR FACES OF THE WAFER, A FIRST LOW RESISTANCE CONNECTION TO SAID ONE FACE AND COMMON TO BOTH THE ZONES CONTIGUOUS THERETO, A SECOND LOW RESISTANCE CONNECTION TO THE OTHER TERMINAL ZONE, THIRD AND FOURTH LOW RESISTANCE CONNECTIONS TO THE INTERMEDIATE ZONE ADJACENT
Claim 2
Dependent Claim
132 words
A BISTABLE PULSE GENERATOR COMPRISING AN INTEGRATED SEMICONDUCTOR STRUCTURE INCLUDING A WAFER OF SEMICONDUCTOR MATERIAL, SAID WAFER HAVING TWO MAJOR FACES AND FOUR SUCCESSIVE ZONES OF OPPOSITE CONDUCTIVITY TYPE IN SUBSTANTIALLY PARALLEL RELATION WITH SAID FACES, ONE OF THE TERMINAL ZONES OF SAID WAFER AND A PORTION OF THE INTERMEDIATE ZONE ADJACENT TO SAID ONE TERMINAL ZONE BEING CONTIGUOUS TO ONE FACE OF SAID WAFER WHEREBY ONE PORTION OF THE WAFER INCLUDES FOUR SUCCESSIVE ZONES BETWEEN THE MAJOR FACES AND THE OTHER PORTION INCLUDES THREE SUCCESSIVE ZONES BETWEEN THE MAJOR FACES OF THE WAFER, A FIRST LOW RESISTANCE CONNECTION TO SAID ONE FACE AND COMMON TO BOTH THE ZONES CONTIGUOUS THERETO, A SECOND LOW RESISTANCE CONNECTION TO THE OTHER TERMINAL ZONE, THIRD AND FOURTH LOW RESISTANCE CONNECTIONS TO THE INTERMEDIATE ZONE ADJACENT
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |