US3123678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prent
Assignee: Zenith Electronics LLC
•
Filing: 1955-12-13
•
Granted: 1964-03-03
•
Expires: 1975-12-13
Abstract
No abstract record available.
Inventors
- 👤 John G Prentisss
- 👤 John T Valaskovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:01
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/65; H04R2225/00; H04R2225/021; H04R2225/0213; H04R2225/0216; H04R25/45; H04R25/60; H04R25/602; H04R25/604; H04R25/607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A HEARING AID COMPRISING: A CASING HAVING AN ACOUSTIC APERATURE AND OF A SIZE ENABLING ITS DISPOSAL IN A POSITION SUBSTANTIALLY ENTIRELY BEHIND THE EXTERNAL EAR AND ADJACENT THE REARWARD JUNCTION BETWEEN THE PINNA AND THE HEAD; AN INPUT TRANSDUCER SUPPORTED IN SAID CASING AND RESPONSIVE TO RECEIVED ACOUSTICAL SIGNALS FOR DEVELOPING ELECTRICAL SIGNALS REPRESENTATIVE THEREOF; AN AMPLIFIER SUPPORTED IN SAID CASING AND COUPLED TO SAID INPUT TRANSDUCER FOR AMPLIFYING SAID ELECTRICAL SIGNALS; MEANS IN ADDITION TO SAID CASING FOR POSITIVELY SUPPORTING SAID CASING GRIPPINGLY IN SAID POSITION; AND MEANS, INCLUDING AN OUTPUT TRANSDUCER COUPLED TO SAID AMPLIFIER, RESPONSIVE TO THE AMPLIFIED ELECTRICAL SIGNALS FOR DISSEMINATING AMPLIFIED ACOUSTICAL ENERGY INTO THE AUDITORY CANAL ON THE SIDE OF SAID EXTERNAL EAR OPPOSITE SAID CASING.
Claim 2
Dependent Claim
123 words
A HEARING AID COMPRISING: A CASING HAVING AN ACOUSTIC APERATURE AND OF A SIZE ENABLING ITS DISPOSAL IN A POSITION SUBSTANTIALLY ENTIRELY BEHIND THE EXTERNAL EAR AND ADJACENT THE REARWARD JUNCTION BETWEEN THE PINNA AND THE HEAD; AN INPUT TRANSDUCER SUPPORTED IN SAID CASING AND RESPONSIVE TO RECEIVED ACOUSTICAL SIGNALS FOR DEVELOPING ELECTRICAL SIGNALS REPRESENTATIVE THEREOF; AN AMPLIFIER SUPPORTED IN SAID CASING AND COUPLED TO SAID INPUT TRANSDUCER FOR AMPLIFYING SAID ELECTRICAL SIGNALS; MEANS IN ADDITION TO SAID CASING FOR POSITIVELY SUPPORTING SAID CASING GRIPPINGLY IN SAID POSITION; AND MEANS, INCLUDING AN OUTPUT TRANSDUCER COUPLED TO SAID AMPLIFIER, RESPONSIVE TO THE AMPLIFIED ELECTRICAL SIGNALS FOR DISSEMINATING AMPLIFIED ACOUSTICAL ENERGY INTO THE AUDITORY CANAL ON THE SIDE OF SAID EXTERNAL EAR OPPOSITE SAID CASING.
References Cited (Backward Citations)
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Cited
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US3035127A
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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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |