US3184601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching systems
Assignee: RCA Corp
•
Filing: 1958-10-16
•
Granted: 1965-05-18
•
Expires: 1978-10-16
Abstract
No abstract record available.
Inventors
- 👤 Walter F Kosonocky
- 👤 Lubomyr S Onyshkevych
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:28
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45; H03K3/47
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
A SWITCHING SYSTEM COMPRISING A PLURALITY OF PARAMETRIC OSCILLATOR CIRCUITS EACH HAVING A FIRST AND A SECOND CONTROL INPUT AND AN A.C. SUPPLY INPUT, EACH OF SAID CIRCUITS INITIALLY BEING IN A NON-OSCILLATING CONDITION, MEANS FOR APPLYING A BURST OF A.C. SIGNALS TO SAID A.C. SUPPLY INPUTS OF ALL SAID CIRCUITS, AND MEANS FOR CONTROLLING THE DURATION OF SAID BURST A.C. SIGNALS TO A GIVEN, MAXIMUM TIME INTERVAL, MEANS FOR APPLYING A FIRST CONTROL SIGNAL OF ONE PHASE TO SAID FIRST CONTROL INPUT OF ALL SAID CIRCUITS, AND MEANS FOR APPLYING OTHER CONTROL SIGNALS TO SAID SECOND INPUTS OF ALL SAID CIRCUITS, CERTAIN OF SAID OTHER SIGNALS BEING OF SAID ONE PHASE AND THE REMAINING OF SAID OTHER SIGNALS BEING OF THE PHASE OPPOSITE SAID ONE PHASE, WHEREBY SAID CIRCUITS RECEIVING SAID CERTAIN OTHER SIGNALS CHANGE FROM SAID NON-OSCILLATING TO AN OSCILLATNG CONDITION.
References Cited (Backward Citations)
GB778883A
Cited
US2928008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |