Patent US4184056A successfully refreshed from Google Patents.
US3374318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax guard for hearing aids
Assignee: Miracle Ear Inc
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Filing: 1965-04-01
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Granted: 1968-03-19
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Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Richard T Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:02
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/65; H04R25/652; H04R25/654
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
IN AN IN-THE-EAR HEARING AID HAVING AN ELONGATED BOOT WITH A SOUND-EMITTING APERTURE IN ONE END THEREOF, SAID BOOT ADAPTED FOR INSERTION IN THE EAR CANAL OF A USER WITH THE SOUND-EMITTING APERTURE ADJACENT THE USER''S EARDRUM, THE IMPROVEMENT COMPRISING: (A) A COVER MEMBER MOUNTED TO OVERLIE THE SOUNDEMITTING APERTURE OF SAID BOOT AND SPACED FROM THE OUTPUT END THEREOF;
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |