Patent US4498196A successfully refreshed from Google Patents.
Patent US3311751A successfully refreshed from Google Patents.
US3311751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit for voltage controlled oscillator
Assignee: RTX Corp
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Filing: 1963-10-25
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Granted: 1967-03-28
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Expires: 1983-10-25
Abstract
No abstract record available.
Inventors
- 👤 Neil E Maestre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:33
CPC Classifications
H; H03; H03K; H03K7/00; H03K7/06; H04; H04L; H04L7/00; H04L7/02; H04L7/033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PHASE COMPARATOR CIRCUIT COMPRISING: A PHASE SPLITTER CIRCUIT FOR PRODUCING TWO SIGNALS 180* OUT OF PHASE, A PAIR OF TRANSISTORS OF OPPOSITE CONDUCTIVITY TYPES, EACH BEING ENERGIZED BY A DIFFERENT ONE OF SAID PHASE DISPLACED SIGNALS THEREBY TO JOINTLY CONDUCT AND BEING RENDERED NONCONDUCTIVE, A GATING TRANSISTOR INTERCONNECTED TO SAID PAIR OF TRANSISTORS TO REVERSEDLY BIAS ONE OF SIAD TRANSISTORS CONDUCTING AND THE OTHER NONCONDUCTING,
Claim 2
Dependent Claim
66 words
A PHASE COMPARATOR CIRCUIT COMPRISING: A PHASE SPLITTER CIRCUIT FOR PRODUCING TWO SIGNALS 180* OUT OF PHASE, A PAIR OF TRANSISTORS OF OPPOSITE CONDUCTIVITY TYPES, EACH BEING ENERGIZED BY A DIFFERENT ONE OF SAID PHASE DISPLACED SIGNALS THEREBY TO JOINTLY CONDUCT AND BEING RENDERED NONCONDUCTIVE, A GATING TRANSISTOR INTERCONNECTED TO SAID PAIR OF TRANSISTORS TO REVERSEDLY BIAS ONE OF SIAD TRANSISTORS CONDUCTING AND THE OTHER NONCONDUCTING,
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |