Patent US3270146A successfully refreshed from Google Patents.
US3270146A
Expired / Lapsed
US
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Hearing aid
Assignee: Motorola Solutions Inc
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Filing: 1963-03-14
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Granted: 1966-08-30
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Eberhard Everett
- 👤 Richard T Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:34
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/60; H04R25/609; H04R25/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A HEARING AID UNIT WHICH INCLUDES A MICROPHONE AND A RECEIVER MEANS, AN AMPLIFIER SECTION ELECTRONICALLY COUPLING SAID MICROPHONE TO SAID RECEIVER MEANS AND INCLUDING IN COMBINATION: A PANEL-LIKE SUBSTRATE MEMBER FORMED OF INSULATING MATERIAL; AT LEAST ONE TRANSISTOR MOUNTED ON SAID SUBSTRATE MEMBER; A PLURALITY OF RESISTANCES MOUNTED ON SAID SUBSTRATE MEMBER AS FILM-LIKE DEPOSITS; A PLURALITY OF CONDUCTORS INTERCONNECTING SAID TRANSISTOR AND SAID RESISTANCES AND MOUNTED ON SAID SUBSTRATE MEMBER AS FILM-LIKE DEPOSITS; AND A PLURALITY OF ELECTRICALLY CONDUCTIVE TABS FORMED OVER AT LEAST ONE OF SAID RESISTANCES AT SPACED POINTS THEREALONG AND ADJACENT TO AT LEAST ONE OF SAID CONDUCTORS, SAID TABS BEING ADAPTED TO BE SELECTIVELY COUPLED TO THE ADJACENT CONDUCTOR TO ADJUST TO THE VALUE OF SUCH RESISTANCE.
Claim 2
Dependent Claim
124 words
IN A HEARING AID UNIT WHICH INCLUDES A MICROPHONE AND A RECEIVER MEANS, AN AMPLIFIER SECTION ELECTRONICALLY COUPLING SAID MICROPHONE TO SAID RECEIVER MEANS AND INCLUDING IN COMBINATION: A PANEL-LIKE SUBSTRATE MEMBER FORMED OF INSULATING MATERIAL; AT LEAST ONE TRANSISTOR MOUNTED ON SAID SUBSTRATE MEMBER; A PLURALITY OF RESISTANCES MOUNTED ON SAID SUBSTRATE MEMBER AS FILM-LIKE DEPOSITS; A PLURALITY OF CONDUCTORS INTERCONNECTING SAID TRANSISTOR AND SAID RESISTANCES AND MOUNTED ON SAID SUBSTRATE MEMBER AS FILM-LIKE DEPOSITS; AND A PLURALITY OF ELECTRICALLY CONDUCTIVE TABS FORMED OVER AT LEAST ONE OF SAID RESISTANCES AT SPACED POINTS THEREALONG AND ADJACENT TO AT LEAST ONE OF SAID CONDUCTORS, SAID TABS BEING ADAPTED TO BE SELECTIVELY COUPLED TO THE ADJACENT CONDUCTOR TO ADJUST TO THE VALUE OF SUCH RESISTANCE.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |