US3303437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building-out network for non-loaded transmission lines
Assignee: AT&T Inc
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Filing: 1964-11-16
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Granted: 1967-02-07
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Monte Robert W De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:03
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/14; H04B3/143; H04B3/144
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
IN COMBINATION, A NON-LOADED CONDUCTIVE TRANSMISSION LINE AND A COMBINED BUILDING-OUT NETWORK AND EQUALIZER WHICH COMPRISES A TRANSFORMER HAVING AT LEAST THREE INDUCTIVELY COUPLED WINDINGS, A PAIR OF SAID WINDINGS BEING CONNECTED IN SERIES AIDING RELATION WITH EACH OTHER IN SERIES WITH ONE SIDE OF SAID LINE AND FORMING A CONDUCTIVE CONTINUATION THEREOF, A CAPACITOR CONNECTED DIRECTLY FROM THE JUNCTION BETWEEN SAID PAIR OF WINDINGS TO THE OTHER SIDE OF SAID LINE, AND A PASSIVE IMPEDANCE COMPRISING A RESISTANCE AND AN INDUCTANCE CONNECTED ACROSS THE THIRD OF SAID WINDINGS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |