Patent US3452220A successfully refreshed from Google Patents.
US3452220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse corrector circuit
Assignee: AT&T Inc
•
Filing: 1966-06-08
•
Granted: 1969-06-24
•
Expires: 1986-06-08
Abstract
No abstract record available.
Inventors
- 👤 Walter W Fritschi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:03
CPC Classifications
H; H04; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/32; H04Q1/36; G; G01; G01R; G01R29/00; G01R29/02; G01R29/027; G01R29/0273; H03; H03K; H03K5/00; H03K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A PULSE CORRECTOR CIRCUIT FOR USE IN COMMUNICATION SYSTEM FOR DELIVERING AN OUTPUT PULSE AFTER A SUBSTANTIALLY FIXED INTERVAL FOLLOWING THE INITIAL TRANSITION OF AN INPUT PULSE COMPRISING FIRST AND SECOND TIMING MEANS OPERABLE RESPONSIVE TO SAID INPUT PULSE, SAID SECOND TIMING MEANS HAVING A TIMING INTERVAL SHORTER THAN SAID FIRST TIMING MEANS, AND GATING MEANS RESPONSIVE TO THE SUBSISTENCE OF SAID INPUT PULSE FOR AN INTERVAL FOLLOWING THE COMPLETION OF TIMING IN SAID SECOND TIME MEANS AND DURING THE CONTINUATION OF TIMING IN SAID FIRST TIMING MEANS FOR CONTROLLING THE DELIVERY OF AN OUTPUT PULSE FROM SAID CORRECTOR CIRCUIT, SAID GATING MEANS BEING ADDITIONALLY RESPONSIVE TO THE CESSATION OF SAID INPUT PULSE DURING THE TIMING INTERVAL OF SAID SECOND TIMING MEANS TO ABORT THE OPERATION OF SAID CORRECTOR CIRCUIT AND PRECLUDE THE DELIVERY OF AN OUTPUT PULSE.
Claim 2
Dependent Claim
138 words
A PULSE CORRECTOR CIRCUIT FOR USE IN COMMUNICATION SYSTEM FOR DELIVERING AN OUTPUT PULSE AFTER A SUBSTANTIALLY FIXED INTERVAL FOLLOWING THE INITIAL TRANSITION OF AN INPUT PULSE COMPRISING FIRST AND SECOND TIMING MEANS OPERABLE RESPONSIVE TO SAID INPUT PULSE, SAID SECOND TIMING MEANS HAVING A TIMING INTERVAL SHORTER THAN SAID FIRST TIMING MEANS, AND GATING MEANS RESPONSIVE TO THE SUBSISTENCE OF SAID INPUT PULSE FOR AN INTERVAL FOLLOWING THE COMPLETION OF TIMING IN SAID SECOND TIME MEANS AND DURING THE CONTINUATION OF TIMING IN SAID FIRST TIMING MEANS FOR CONTROLLING THE DELIVERY OF AN OUTPUT PULSE FROM SAID CORRECTOR CIRCUIT, SAID GATING MEANS BEING ADDITIONALLY RESPONSIVE TO THE CESSATION OF SAID INPUT PULSE DURING THE TIMING INTERVAL OF SAID SECOND TIMING MEANS TO ABORT THE OPERATION OF SAID CORRECTOR CIRCUIT AND PRECLUDE THE DELIVERY OF AN OUTPUT PULSE.
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) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |