Patent US3170038A successfully refreshed from Google Patents.
US3170038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bidirectional transmission amplifier
Assignee: Unisys Corp
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Filing: 1961-08-01
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Granted: 1965-02-16
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Expires: 1981-08-01
Abstract
No abstract record available.
Inventors
- 👤 Lloyd A Johnson
- 👤 Donald E Marpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/14; H04L5/1423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A TRANSMISSION AMPLIFYING SYSTEM COMPRISING: FIRST AND SECOND AMPLIFYING MEANS; SAID FIRST AND SECOND AMPLIFYING MEANS EACH INCLUDING INPUT MEANS, OUTPUT MEANS, AND INPUT-OUTPUT MEANS; A TRANSMISSION LINE COUPLING SAID FIRST AMPLIFYING MEANS INPUT/OUTPUT MEANS TO SAID SECOND AMPLIFYING MEANS INPUT/OUTPUT MEANS; SAID SECOND AMPLIFYING MEANS OUTPUT MEANS RESPONSIVE TO A FIRST PREDETERMINED INPUT SIGNAL IMPRESSED UPON SAID FIRST AMPLIFYING MEANS INPUT MEANS; SAID FIRST AMPLIFYING MEANS OUTPUT MEANS RESPONSIVE TO A SECOND PREDETERMINED INPUT SIGNAL IMPRESSED UPON SAID SECOND AMPLIFYING MEANS INPUT MEANS; SAID FIRST AMPLIFYING MEANS FURTHER INCLUDING A NONSATURATING TRANSFORMER MEANS INCLUDING AT LEAST THREE WINDING MEANS; FIRST WINDING MEANS; SECOND WINDING
Claim 2
Dependent Claim
105 words
A TRANSMISSION AMPLIFYING SYSTEM COMPRISING: FIRST AND SECOND AMPLIFYING MEANS; SAID FIRST AND SECOND AMPLIFYING MEANS EACH INCLUDING INPUT MEANS, OUTPUT MEANS, AND INPUT-OUTPUT MEANS; A TRANSMISSION LINE COUPLING SAID FIRST AMPLIFYING MEANS INPUT/OUTPUT MEANS TO SAID SECOND AMPLIFYING MEANS INPUT/OUTPUT MEANS; SAID SECOND AMPLIFYING MEANS OUTPUT MEANS RESPONSIVE TO A FIRST PREDETERMINED INPUT SIGNAL IMPRESSED UPON SAID FIRST AMPLIFYING MEANS INPUT MEANS; SAID FIRST AMPLIFYING MEANS OUTPUT MEANS RESPONSIVE TO A SECOND PREDETERMINED INPUT SIGNAL IMPRESSED UPON SAID SECOND AMPLIFYING MEANS INPUT MEANS; SAID FIRST AMPLIFYING MEANS FURTHER INCLUDING A NONSATURATING TRANSFORMER MEANS INCLUDING AT LEAST THREE WINDING MEANS; FIRST WINDING MEANS; SECOND WINDING
References Cited (Backward Citations)
US1690153A
Cited
US2947816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |