US3072754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hearing aid device
Assignee: Dictograph Products Inc
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Filing: 1959-08-20
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Granted: 1963-01-08
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Expires: 1979-08-20
Abstract
No abstract record available.
Inventors
- 👤 Philip N Lehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:07
CPC Classifications
G; G02; G02C; G02C11/00; G02C11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A HEARING AID DEVICE COMPRISING A HOUSING HAVING AN EXPOSED FACE, SAID EXPOSED FACE HAVING AN OPENING THERETHROUGH THROUGH WHICH SOUND WAVES MAY PASS TO A HEARING AID UNIT SUPPORTED WITHIN SAID HOUSING, AND A WIND SHIELD FOR SAID OPENING FORMED ON SAID HOUSING AND RISING FROM SAID EXPOSE FACE AND EXTENDING PARTIALLY AROUND AND CLOSE TO SAID OPENING AND HAVING ENDS EXTENDING IN SUBSTANTIALLY THE SAME DIRECTION AWAY FROM SAID OPENING.
Claim 2
Dependent Claim
72 words
A HEARING AID DEVICE COMPRISING A HOUSING HAVING AN EXPOSED FACE, SAID EXPOSED FACE HAVING AN OPENING THERETHROUGH THROUGH WHICH SOUND WAVES MAY PASS TO A HEARING AID UNIT SUPPORTED WITHIN SAID HOUSING, AND A WIND SHIELD FOR SAID OPENING FORMED ON SAID HOUSING AND RISING FROM SAID EXPOSE FACE AND EXTENDING PARTIALLY AROUND AND CLOSE TO SAID OPENING AND HAVING ENDS EXTENDING IN SUBSTANTIALLY THE SAME DIRECTION AWAY FROM SAID OPENING.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |