US3320550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide wall-current tunnel diode amplifier and oscillator
Assignee: Individual
•
Filing: 1965-03-23
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Granted: 1967-05-16
•
Expires: 1985-03-23
Abstract
No abstract record available.
Inventors
- 👤 Horst W A Gerlach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:36
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; H03F3/10; H03F3/12; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A TRAVELING-WAVE DEVICE COMPRISING: (A) A RECTANGULAR WAVEGUIDE SECTION HAVING TWO NARROW SIDEWALLS AND TWO BROAD WALLS; AND (B) AT LEAST ONE ARRAY OF NEGATIVE-RESISTANCE SOLID-STATE DEVICES FABRICATED INTO A NARROW SIDEWALL OF SAID WAVEGUIDE SECTION, EACH NEGATIVE-RESISTANCE SOLIDSTATE DEVICE OF SAID ARRAY BEING POSITIONED IN SAID NARROW SIDEWALL TO CARRY ONLY A FRACTIONAL PORTION OF THE TOTAL RADIO-FREQUENCY CURRENT FLOWING IN SAID NARROW SIDEWALL WHEN SAID WAVEGUIDE SECTION IS EXCITED IN THE DOMINANT TRANSVERSE ELECTRIC MODE.
Claim 2
Dependent Claim
77 words
A TRAVELING-WAVE DEVICE COMPRISING: (A) A RECTANGULAR WAVEGUIDE SECTION HAVING TWO NARROW SIDEWALLS AND TWO BROAD WALLS; AND (B) AT LEAST ONE ARRAY OF NEGATIVE-RESISTANCE SOLID-STATE DEVICES FABRICATED INTO A NARROW SIDEWALL OF SAID WAVEGUIDE SECTION, EACH NEGATIVE-RESISTANCE SOLIDSTATE DEVICE OF SAID ARRAY BEING POSITIONED IN SAID NARROW SIDEWALL TO CARRY ONLY A FRACTIONAL PORTION OF THE TOTAL RADIO-FREQUENCY CURRENT FLOWING IN SAID NARROW SIDEWALL WHEN SAID WAVEGUIDE SECTION IS EXCITED IN THE DOMINANT TRANSVERSE ELECTRIC MODE.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |