Patent US3246256A successfully refreshed from Google Patents.
US3246256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator circuit with series connected negative resistance elements for enhanced power output
Assignee: RCA Corp
•
Filing: 1964-06-08
•
Granted: 1966-04-12
•
Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry S Sommers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:20
CPC Classifications
H; H03; H03B; H03B7/00; H03B7/12; H03B7/14; H03B7/02; H03B7/06; H03B7/08; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN OSCILLATION GENERATOR COMPRISING IN COMBINATION A PLURALITY OF SERIALLY CONNECTED NEGATIVE RESISTANCE DEVICES, REACTIVE CIRCUIT MEANS COUPLED ACROSS SAID SERIALLY CONNECTED NEGATIVE RESISTANCE DEVICES TO PROVIDE A RESONANT CIRCUIT, AND MEANS PROVIDING A BIASING SOURCE COUPLED ACROSS SAID PLURALITY OF NEGATIVE RESISTANCE DEVICES TO BIAS AT LEAST ONE OF SAID DEVICES IN THE NEGATIVE RESISTANCE PORTION OF ITS CHARACTERISTIC, SAID BIAS MEANS INCLUDING A SINGLE RESISTOR CONNECTED ACROSS SAID SERIALLY CONNECTED NEGATIVE RESISTANCE DEVICES AND HAVING A POSITIVE RESISTANCE THE ABSOLUTE VALUE OF WHICH IS LESS THAN THE ABSOLUTE VALUE OF NEGATIVE RESISTANCE EXHIBITED BY ANY OF SAID NEGATIVE RESISTANCE DEVICES.
Claim 2
Dependent Claim
102 words
AN OSCILLATION GENERATOR COMPRISING IN COMBINATION A PLURALITY OF SERIALLY CONNECTED NEGATIVE RESISTANCE DEVICES, REACTIVE CIRCUIT MEANS COUPLED ACROSS SAID SERIALLY CONNECTED NEGATIVE RESISTANCE DEVICES TO PROVIDE A RESONANT CIRCUIT, AND MEANS PROVIDING A BIASING SOURCE COUPLED ACROSS SAID PLURALITY OF NEGATIVE RESISTANCE DEVICES TO BIAS AT LEAST ONE OF SAID DEVICES IN THE NEGATIVE RESISTANCE PORTION OF ITS CHARACTERISTIC, SAID BIAS MEANS INCLUDING A SINGLE RESISTOR CONNECTED ACROSS SAID SERIALLY CONNECTED NEGATIVE RESISTANCE DEVICES AND HAVING A POSITIVE RESISTANCE THE ABSOLUTE VALUE OF WHICH IS LESS THAN THE ABSOLUTE VALUE OF NEGATIVE RESISTANCE EXHIBITED BY ANY OF SAID NEGATIVE RESISTANCE DEVICES.
References Cited (Backward Citations)
US3127567A
Cited
US3019981A
Cited
US3127574A
Cited
US3112454A
Cited
US3069564A
Cited
US3134949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |