Patent US3259205A successfully refreshed from Google Patents.
US3259205A
Expired / Lapsed
US
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Mechanical device for improving hearing
Assignee: Individual
•
Filing: 1965-10-08
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Granted: 1966-07-05
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Irvine L Dubow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:50
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A MECHANICAL DEVICE FOR IMPROVING HEARING COMPRISING A TAPERED HOUSING, A MEMBRANE DIVIDING SAID HOUSING INTO TWO PASSAGES EACH HAVING A RELATIVELY SMALL END AND A RELATIVELY LARGE END, SAID RELATIVELY LARGE END BEING CONNECTED FOR THE TRANSFER OF SOUND ENERGY FROM ONE PASSAGE TO THE OTHER, MEANS FOR INTRODUCING SOUND ENERGY INTO ONE OF SAID PASSAGES ADJACENT ITS SMALLER END, AND SAID PASSAGES HAVING AT LEAST ONE OPENING FOR REMOVING SOUND ENERGY FROM SAID HOUSING.
Claim 2
Dependent Claim
76 words
A MECHANICAL DEVICE FOR IMPROVING HEARING COMPRISING A TAPERED HOUSING, A MEMBRANE DIVIDING SAID HOUSING INTO TWO PASSAGES EACH HAVING A RELATIVELY SMALL END AND A RELATIVELY LARGE END, SAID RELATIVELY LARGE END BEING CONNECTED FOR THE TRANSFER OF SOUND ENERGY FROM ONE PASSAGE TO THE OTHER, MEANS FOR INTRODUCING SOUND ENERGY INTO ONE OF SAID PASSAGES ADJACENT ITS SMALLER END, AND SAID PASSAGES HAVING AT LEAST ONE OPENING FOR REMOVING SOUND ENERGY FROM SAID HOUSING.
References Cited (Backward Citations)
US1814554A
Cited
US2641327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |