US3227812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication channel-joining fork circuit
Assignee: Siemens and Halske AG
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Filing: 1962-08-07
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Granted: 1966-01-04
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Expires: 1982-08-07
Abstract
No abstract record available.
Inventors
- 👤 Schlichte Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:31
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/54; H04B1/58; H04M; H04M1/00; H04M1/58; H04M1/585
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A HYBRID CIRCUIT FOR JOINING IN A COMMUNICATION SYSTEM A SENDER CHANNEL AND A RECEIVER CHANNEL WITH A TRANSMISSION CHANNEL WHICH IS COMMON TO BOTH DIRECTIONS OF TRANSMISSION, WITH THE RECEIVER CHANNEL BEING DECOUPLED WITH RESPECT TO THE SENDER CHANNEL, COMPRISING TERMINALS FOR THE SENDER CHANNEL, TERMINALS FOR THE COMMON TRANSMISSION CHANNEL, A TRANSISTOR ARRANGED FOR OPERATION IN THE MANNER OF A COMMON BASE STAGE, CIRCUIT MEANS FOR CONNECTING OVER SAID TRANSISTOR THE TERMINALS FOR THE SENDER CHANNEL WITH THE TERMINALS FOR THE COMMON TRANSMISSION CHANNEL, A RESISTOR DISPOSED IN THE EMITTER BRANCH OF SAID
Claim 2
Dependent Claim
95 words
A HYBRID CIRCUIT FOR JOINING IN A COMMUNICATION SYSTEM A SENDER CHANNEL AND A RECEIVER CHANNEL WITH A TRANSMISSION CHANNEL WHICH IS COMMON TO BOTH DIRECTIONS OF TRANSMISSION, WITH THE RECEIVER CHANNEL BEING DECOUPLED WITH RESPECT TO THE SENDER CHANNEL, COMPRISING TERMINALS FOR THE SENDER CHANNEL, TERMINALS FOR THE COMMON TRANSMISSION CHANNEL, A TRANSISTOR ARRANGED FOR OPERATION IN THE MANNER OF A COMMON BASE STAGE, CIRCUIT MEANS FOR CONNECTING OVER SAID TRANSISTOR THE TERMINALS FOR THE SENDER CHANNEL WITH THE TERMINALS FOR THE COMMON TRANSMISSION CHANNEL, A RESISTOR DISPOSED IN THE EMITTER BRANCH OF SAID
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |