US2918628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor amplifier
Assignee: Individual
•
Filing: 1957-01-23
•
Granted: 1959-12-22
•
Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 Otmar M Stuetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SEMICONDUCTIVE AMPLIFYING DEVICE HAVING A FIRST THIN REGION OF SEMICONDUCTIVE MATERIAL WITH HIGH RESISTIVITY BETWEEN TWO REGIONS OF MATERIAL WITH LOW RESISTIVITY, AN ELONGATED CONTROL ELECTRODE SUBSTANTIALLY SUR ROUNDING SAID SEMICONDUCTIVE DEVICE ADJACENT THE THIN EDGE OF SAID HGIH RESISTIVITY REGION, A POLAR LIQUID DRENCHED DIELECTRIC MATERIAL WITH A THICKNESS OF APPROXIMATELY 10-**3 CM. BETWEEN SAID CONTROL ELECTRODE AND SAID MATERIAL WITH HIGH RESISTIVITY, A BIAS SOURCE AND SIGNAL INPUT MEANS CONNECTED BETWEEN SAID CONTROL ELECTRODE AND ONE OF SAID REGIONS OF LOW RESISTIVITY AND A VOLTAGE SOURCE AND LOAD IN A CIRCUIT BETWEEN SAID TWO REGIONS OF LOW RESISTIVITY.
Claim 2
Dependent Claim
101 words
A SEMICONDUCTIVE AMPLIFYING DEVICE HAVING A FIRST THIN REGION OF SEMICONDUCTIVE MATERIAL WITH HIGH RESISTIVITY BETWEEN TWO REGIONS OF MATERIAL WITH LOW RESISTIVITY, AN ELONGATED CONTROL ELECTRODE SUBSTANTIALLY SUR ROUNDING SAID SEMICONDUCTIVE DEVICE ADJACENT THE THIN EDGE OF SAID HGIH RESISTIVITY REGION, A POLAR LIQUID DRENCHED DIELECTRIC MATERIAL WITH A THICKNESS OF APPROXIMATELY 10-**3 CM. BETWEEN SAID CONTROL ELECTRODE AND SAID MATERIAL WITH HIGH RESISTIVITY, A BIAS SOURCE AND SIGNAL INPUT MEANS CONNECTED BETWEEN SAID CONTROL ELECTRODE AND ONE OF SAID REGIONS OF LOW RESISTIVITY AND A VOLTAGE SOURCE AND LOAD IN A CIRCUIT BETWEEN SAID TWO REGIONS OF LOW RESISTIVITY.
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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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |