Patent US3200201A successfully refreshed from Google Patents.
US3200201A
Expired / Lapsed
US
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Interpolation signaling
Assignee: AT&T Inc
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Filing: 1961-12-29
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Granted: 1965-08-10
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 John P Runyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:58
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/17; H04Q; H04Q11/00; H04Q11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
SIGNALING APPARATUS WHICH COMPRISES A SYSTEM FOR TRANSMITTING MESSAGES IN OPPOSED DIRECTIONS OF PROPAGATION, MEANS FOR DETECTING A PREASSIGNED CONDITION OF A MESSAGE PROPAGATED IN ONE DIRECTION, MEANS FOR DETECTING A SIMILAR CONDITION OF A MESSAGE PROPAGATED IN THE OTHER DIRECTION AND MEANS RESPONSIVE TO THE COINCIDENCE OF THE DETECTED CONDITIONS FOR TRANSMITTING A SIGNAL IN ONE OF SAID DIRECTIONS.
Claim 2
Dependent Claim
60 words
SIGNALING APPARATUS WHICH COMPRISES A SYSTEM FOR TRANSMITTING MESSAGES IN OPPOSED DIRECTIONS OF PROPAGATION, MEANS FOR DETECTING A PREASSIGNED CONDITION OF A MESSAGE PROPAGATED IN ONE DIRECTION, MEANS FOR DETECTING A SIMILAR CONDITION OF A MESSAGE PROPAGATED IN THE OTHER DIRECTION AND MEANS RESPONSIVE TO THE COINCIDENCE OF THE DETECTED CONDITIONS FOR TRANSMITTING A SIGNAL IN ONE OF SAID DIRECTIONS.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |