US3342498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable phonograph
Assignee: Newcomb Electronics Corp
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Filing: 1965-05-13
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Granted: 1967-09-19
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Expires: 1985-05-13
Abstract
No abstract record available.
Inventors
- 👤 Ronald G Eberhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:19
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN A PHONOGRAPH HAVING A CASE, A TURNTABLE AND A PICKUP ASSEMBLY MOUNTED IN THE CASE, SAID CASE HAVING A SPEAKER OPENING, AND TOP, BOTTOM AND SIDE WALLS SURROUNDING THE SPEAKER OPENING, THE COMBINATION THEREWITH OF: A SPEAKER ASSEMBLY INCLUDING A FRONT PANEL HAVING A PORT; A SPEAKER MOUNTED ON SAID PANEL IN REGISTRY WITH SAID PORT; WALL MEANS FORMING AN OPEN BOX-LIKE STRUCTURE SURROUNDING THE SPEAKER; SAID WALL MEANS HAVING AN OPENING OPPOSITE SAID PANEL EXPOSED TO THE INTERIOR OF SAID CASE; AND ACOUSTIC DAMPING MEANS SUSPENDING THE SPEAKER ASSEMBLY IN THE CASE WITH THE FRONT PANEL ALIGNED WITH SAID SPEAKER OPENING AND SAID WALL MEANS SUBSTANTIALLY PARALLELING THE TOP, BOTTOM AND SIDE WALLS OF SAID PHONOGRAPH CASE AND HAVING SMALL CLEARANCE WITH RESPECT TO SAID CASE WALLS TO DEFINE A RESTRICTED AIR PATH BETWEEN THE FRONT OF SAID PANEL AND THE REAR OF SAID PANEL, THE INTERIOR CROSS-SECTIONAL AREA OF SAID CASE IN A PLANE THROUGH SAID WALL MEANS BEING ONLY SLIGHTLY GREATER THAN THE CORRESPONDING EXTERIOR CROSS-SECTIONAL AREA OF SAID WALL MEANS.
Claim 2
Dependent Claim
175 words
IN A PHONOGRAPH HAVING A CASE, A TURNTABLE AND A PICKUP ASSEMBLY MOUNTED IN THE CASE, SAID CASE HAVING A SPEAKER OPENING, AND TOP, BOTTOM AND SIDE WALLS SURROUNDING THE SPEAKER OPENING, THE COMBINATION THEREWITH OF: A SPEAKER ASSEMBLY INCLUDING A FRONT PANEL HAVING A PORT; A SPEAKER MOUNTED ON SAID PANEL IN REGISTRY WITH SAID PORT; WALL MEANS FORMING AN OPEN BOX-LIKE STRUCTURE SURROUNDING THE SPEAKER; SAID WALL MEANS HAVING AN OPENING OPPOSITE SAID PANEL EXPOSED TO THE INTERIOR OF SAID CASE; AND ACOUSTIC DAMPING MEANS SUSPENDING THE SPEAKER ASSEMBLY IN THE CASE WITH THE FRONT PANEL ALIGNED WITH SAID SPEAKER OPENING AND SAID WALL MEANS SUBSTANTIALLY PARALLELING THE TOP, BOTTOM AND SIDE WALLS OF SAID PHONOGRAPH CASE AND HAVING SMALL CLEARANCE WITH RESPECT TO SAID CASE WALLS TO DEFINE A RESTRICTED AIR PATH BETWEEN THE FRONT OF SAID PANEL AND THE REAR OF SAID PANEL, THE INTERIOR CROSS-SECTIONAL AREA OF SAID CASE IN A PLANE THROUGH SAID WALL MEANS BEING ONLY SLIGHTLY GREATER THAN THE CORRESPONDING EXTERIOR CROSS-SECTIONAL AREA OF SAID WALL MEANS.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |