US3370251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural oscillators with a circuit to identify a malfunctioning oscillator
Assignee: AT&T Inc
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Filing: 1966-12-09
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Granted: 1968-02-20
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Expires: 1986-12-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Overstreet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:57
CPC Classifications
H; H03; H03L; H03L7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN COMBINATION COMPRISING A MASTER-OSCILLATOR AND FIRST AND SECOND ADDITIONAL OSCILLATORS NORMALLY RESPONSIVE A FIRST SECOND PHASE-LOCKING CIRCUITS, RESPECTIVELY, TO PHASE LOCK SAID ADDITIONAL OSCILLATORS TO SAID MASTEROSCILLATOR, A COMPARATOR CONNECTED TO SAID PHASE-LOCKING CIRCUITS TO PRODUCE ON OUTPUT WHEN THE PHASE-LOCKING CIRCUIT OUTPUTS DIFFER BY A PREDETERMINED AMOUNT, FIRST AND SECON LIMIT DETECTORS CONNECTED TO SAID FIRST AND SECOND PHASE-LOCKING CIRCUITS, RESPECTIVELY, TO PRODUCE OUTPUTS WHEN THE OUTPUTS OF THEIR PHASELOCKING CIRCUITS OCCUR OUTSIDE OF PREDETERMINED RANGES.
Claim 2
Dependent Claim
78 words
IN COMBINATION COMPRISING A MASTER-OSCILLATOR AND FIRST AND SECOND ADDITIONAL OSCILLATORS NORMALLY RESPONSIVE A FIRST SECOND PHASE-LOCKING CIRCUITS, RESPECTIVELY, TO PHASE LOCK SAID ADDITIONAL OSCILLATORS TO SAID MASTEROSCILLATOR, A COMPARATOR CONNECTED TO SAID PHASE-LOCKING CIRCUITS TO PRODUCE ON OUTPUT WHEN THE PHASE-LOCKING CIRCUIT OUTPUTS DIFFER BY A PREDETERMINED AMOUNT, FIRST AND SECON LIMIT DETECTORS CONNECTED TO SAID FIRST AND SECOND PHASE-LOCKING CIRCUITS, RESPECTIVELY, TO PRODUCE OUTPUTS WHEN THE OUTPUTS OF THEIR PHASELOCKING CIRCUITS OCCUR OUTSIDE OF PREDETERMINED RANGES.
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |