US3188486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test-signal generator producing outputs of different frequencies and configurations from flip-flops actuated by selectively phased pulses
Assignee: AT&T Inc
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Filing: 1961-10-31
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Granted: 1965-06-08
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Expires: 1981-10-31
Abstract
No abstract record available.
Inventors
- 👤 David L Favin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:34
CPC Classifications
H; H04; H04L; H04L43/00; H04L43/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
A TEST SIGNAL GENERATOR COMPRISING TWO BISTABLE CIRCUITS HAVING COMPLEMENTARY TRIGGERING CHARACTERISTICS, A SOURCE OF PULSES, MEANS COUPLED TO SAID SOURCE AND RESPONSIVE TO A PORTION OF THE PULSES FROM SAID SOURCE FOR ACTUATING SAID BISTABLE CIRCUITS ALTERNATELY, CONNECTIONS APPLYING TO THE ACTUATED ONE OF SAID BISTABLE CIRCUITS A RESTORING SIGNAL IN RESPONSE TO SAID PULSES, AND MEANS COMBINING THE OUTPUTS OF SAID BISTABLE CIRCUITS.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |