US3331031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed pentode hartley oscillator with independently adjustable rise and fall times
Assignee: Belltone Electronics Corp
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Filing: 1966-02-01
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Granted: 1967-07-11
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Edward P Nawracaj
- 👤 Frederick T Forman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:46
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN COMBINATION, A CONTROLLABLE SOURCE OF ELECTRICAL OSCILLATIONS HAVING AN OUTPUT AND A CONTROL INPUT, THE MAGNITUDE OF SAID ELECTRICAL OSCILLATIONS BEING RELATED TO THE MAGNITUDE OF A DIRECT CURRENT SIGNAL APPLIED TO SAID CONTROL INPUT, A SOURCE OF A SUBSTANTIALLY CONSTANT DIRECT VOLTAGE HAVING FIRST AND SECOND TERMINALS, THE SERIES COMBINATION OF A FIRST RESISTANCE AND A SWITCH CONNNECTED BETWEEN SAID TERMINALS, THE SERIES COMBINATION OF A SECOND RESISTANCE AND A TIMING CAPACITOR CONNECTED IN PARALLEL WITH SAID SWITCH, MEANS FOR CONNECTING SAID CONTROL TERMI-
Claim 2
Dependent Claim
86 words
IN COMBINATION, A CONTROLLABLE SOURCE OF ELECTRICAL OSCILLATIONS HAVING AN OUTPUT AND A CONTROL INPUT, THE MAGNITUDE OF SAID ELECTRICAL OSCILLATIONS BEING RELATED TO THE MAGNITUDE OF A DIRECT CURRENT SIGNAL APPLIED TO SAID CONTROL INPUT, A SOURCE OF A SUBSTANTIALLY CONSTANT DIRECT VOLTAGE HAVING FIRST AND SECOND TERMINALS, THE SERIES COMBINATION OF A FIRST RESISTANCE AND A SWITCH CONNNECTED BETWEEN SAID TERMINALS, THE SERIES COMBINATION OF A SECOND RESISTANCE AND A TIMING CAPACITOR CONNECTED IN PARALLEL WITH SAID SWITCH, MEANS FOR CONNECTING SAID CONTROL TERMI-
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |