Patent US3126449A successfully refreshed from Google Patents.
US3126449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shirman
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:43
CPC Classifications
G; G10; G10L; G10L25/00; G10L25/78; H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/34; H03G3/342; H03G3/344; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
174 words
IN COMBINATION, AN INPUT CIRCUIT, AN OUTPUT CIRCUIT, FIRST MEANS COUPLED TO SAID INPUT CIRCUIT FOR PRODUCING AN OUTPUT CIRCUIT WHEN A FLUCTUATING SIGNAL HAVING A FIRST FREQUENCY LYING WITHIN A FIRST BANDWIDTH AND HAVING A FIRST MINIMUM ENERGY CONTENT IS PRESENT IN SAID INPUT CIRCUIT, SECOND MEANS COUPLED TO SAID INPUT CIRCUIT FOR PRODUCING AN OUTPUT SIGNAL WHEN A FLUCTUATING SIGNAL HAVING A SECOND FREQUENCY LYING WITHIN A SECOND BANDWIDTH AND HAVING A SECOND MINIMUM ENERGY CONTENT WHICH IS LESS THAN SAID FIRST MINIMUM ENERGY CONTENT IS PRESENT IN SAID INPUT CIRCUIT, THIRD MEANS COUPLED TO SAID INPUT CIRCUIT FOR PRODUCING AN OUTPUT SIGNAL WHEN A FLUCTUATING SIGNAL HAVING A THIRD FREQUENCY LYING WITHIN A THIRD BANDWIDTH AND HAVING A MINIMUM ENERGY CONTENT IS PRESENT IN SAID INPUT CIRCUIT, AND FOURTH MEANS COUPLED TO THE OUTPUT CIRCUITS OF SAID FIRST, SECOND, AND THIRD MEANS FOR GIVING AN INDICATION WHEN SAID FIRST MEANS PRODUCES AN OUTPUT SIGNAL AND EITHER SAID SECOND MEANS PRODUCES AN OUTPUT SIGNAL OR SAID THIRD MEANS PRODUCES AN OUTPUT SIGNAL.
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) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |