US3238302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intercommunication system
Assignee: FANON ELECTRONIC IND Inc
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Filing: 1962-07-05
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Granted: 1966-03-01
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Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 Curchack Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:25
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/001; H04M9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN AN INTERCOMMUNICATION SYSTEM FIRST STATION HAVING A MICROPHONE, AN AMPLIFIER COUPLED TO SAID MICROPHONE TO PROVIDE A STATION OUTPUT AND A SPEAKER ADAPTED TO RECEIVE A STATION INPUT FROM A SECOND STATION, SAID FIRST STATION ALSO HAVING CIRCUIT MEANS FOR COUPLING A PORTION OF THE INPUT OF SAID SPEAKER TO SAID AMPLIFIER TO REDUCE THE GAIN OF SAID AMPLIFIER AS A FUNCTION OF THE MAGNITUDE OF THE INFORMATION SIGNAL SUPPLIED TO SAID SPEAKER, THE IMPROVEMENT COMPRISING: BYPASS CIRCUIT MEANS COUPLED TO THE OUTPUT OF SAID MICROPHONE TO PROVIDE A BYPASS FOR A PRE-DETERMINED UPPER FREQUENCY RANGE OF THE OUTPUT OF SAID MICROPHONE, AND DISENABLING CIRCUIT MEANS COUPLED TO THE OUTPUT OF SAID AMPLIFIER TO PROVIDE A SIGNAL TO DISENABLE SAID BYPASS CIRCUIT MEANS WHEN THE OUTPUT OF SAID AMPLIFIER ATTAINS A PRE-DETERMINED VOLUME LEVEL.
Claim 2
Dependent Claim
135 words
IN AN INTERCOMMUNICATION SYSTEM FIRST STATION HAVING A MICROPHONE, AN AMPLIFIER COUPLED TO SAID MICROPHONE TO PROVIDE A STATION OUTPUT AND A SPEAKER ADAPTED TO RECEIVE A STATION INPUT FROM A SECOND STATION, SAID FIRST STATION ALSO HAVING CIRCUIT MEANS FOR COUPLING A PORTION OF THE INPUT OF SAID SPEAKER TO SAID AMPLIFIER TO REDUCE THE GAIN OF SAID AMPLIFIER AS A FUNCTION OF THE MAGNITUDE OF THE INFORMATION SIGNAL SUPPLIED TO SAID SPEAKER, THE IMPROVEMENT COMPRISING: BYPASS CIRCUIT MEANS COUPLED TO THE OUTPUT OF SAID MICROPHONE TO PROVIDE A BYPASS FOR A PRE-DETERMINED UPPER FREQUENCY RANGE OF THE OUTPUT OF SAID MICROPHONE, AND DISENABLING CIRCUIT MEANS COUPLED TO THE OUTPUT OF SAID AMPLIFIER TO PROVIDE A SIGNAL TO DISENABLE SAID BYPASS CIRCUIT MEANS WHEN THE OUTPUT OF SAID AMPLIFIER ATTAINS A PRE-DETERMINED VOLUME LEVEL.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |