US3177430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test arrangement for communication systems
Assignee: General Electric Co
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Filing: 1961-11-29
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Granted: 1965-04-06
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Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 Peter G Smee
- 👤 Jr Joe Burton Linker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:13
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A TEST ARRANGEMENT FOR TESTING A DUPLEX COMMUNICATION SYSTEM AT A SINGLE LOCATION INCLUDING A TRANSMITTER AND RECEIVER OPERATING AT DIFFERENT FREQUENCIES, COMPRISING, (A) AN ATTENUATOR, (B) DUPLEX CIRCUIT MEANS CONTINUOUSLY CONNECTING THE OUTPUT OF SAID TRANSMITTER AND THE INPUT OF SAID RECEIVER TO THE INPUT OF SAID ATTENUATOR WHILE SIMULTANEOUSLY ISOLATING SAID TRANSMITTER OUTPUT FROM SAID RECEIVER INPUT, (C) A MIXER, (D) MEANS TO CONNECT THE OUTPUT OF SAID ATTENUATOR TO SAID MIXER,
Claim 2
Dependent Claim
74 words
A TEST ARRANGEMENT FOR TESTING A DUPLEX COMMUNICATION SYSTEM AT A SINGLE LOCATION INCLUDING A TRANSMITTER AND RECEIVER OPERATING AT DIFFERENT FREQUENCIES, COMPRISING, (A) AN ATTENUATOR, (B) DUPLEX CIRCUIT MEANS CONTINUOUSLY CONNECTING THE OUTPUT OF SAID TRANSMITTER AND THE INPUT OF SAID RECEIVER TO THE INPUT OF SAID ATTENUATOR WHILE SIMULTANEOUSLY ISOLATING SAID TRANSMITTER OUTPUT FROM SAID RECEIVER INPUT, (C) A MIXER, (D) MEANS TO CONNECT THE OUTPUT OF SAID ATTENUATOR TO SAID MIXER,
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |