US3354271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed hearing aid
Assignee: Individual
•
Filing: 1964-02-28
•
Granted: 1967-11-21
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Expires: 1984-02-28
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Mcdermaid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:02
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/60; H04R25/602; H04R25/55; H04R25/556; H04R2225/00; H04R2225/31; Y; Y10; Y10S; Y10S320/00; Y10S320/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A HEARING AID COMPRISING: A MOLDED CASE ADAPTED TO BE COMPLETELY SUPPORTED BY A HUMAN EAR; AN AMPLIFIER CIRCUIT, CONTROL SWITCH, POLARIZED CONNECTOR ADAPTED TO BE CONNECTED TO AN EXTERNAL POWER SOURCE, AND A FIRST RECHARGEABLE BATTERY ALL WITHIN SAID CASE; A SET OF ELECTRICAL CIRCUIT CONDUCTING MEMBERS INTERCONNECTING SAID BATTERY WITH SAID POLARIZED CONNECTOR; AND A SECOND GROUP OF CONDUCTING CIRCUIT MEMBERS INTERCONNECTING SAID BATTERY, SAID SWITCH AND SAID HEARING AID CIRCUIT IN SUCH A MANNER THAT SAID HEARING SAID CIRCUIT IS OPERABLE SIMULTANEOUSLY WITH CHARGING OF SAID BATTERY OF POWER SUPPLIED THROUGH SAID POLARIZED CONNECTOR.
Claim 2
Dependent Claim
97 words
A HEARING AID COMPRISING: A MOLDED CASE ADAPTED TO BE COMPLETELY SUPPORTED BY A HUMAN EAR; AN AMPLIFIER CIRCUIT, CONTROL SWITCH, POLARIZED CONNECTOR ADAPTED TO BE CONNECTED TO AN EXTERNAL POWER SOURCE, AND A FIRST RECHARGEABLE BATTERY ALL WITHIN SAID CASE; A SET OF ELECTRICAL CIRCUIT CONDUCTING MEMBERS INTERCONNECTING SAID BATTERY WITH SAID POLARIZED CONNECTOR; AND A SECOND GROUP OF CONDUCTING CIRCUIT MEMBERS INTERCONNECTING SAID BATTERY, SAID SWITCH AND SAID HEARING AID CIRCUIT IN SUCH A MANNER THAT SAID HEARING SAID CIRCUIT IS OPERABLE SIMULTANEOUSLY WITH CHARGING OF SAID BATTERY OF POWER SUPPLIED THROUGH SAID POLARIZED CONNECTOR.
References Cited (Backward Citations)
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Cited
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US3089071A
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US3055990A
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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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |