US3074503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loud speaker enclosures
Assignee: Individual
•
Filing: 1961-01-19
•
Granted: 1963-01-22
•
Expires: 1981-01-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Barry Cool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:40
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/32; H04R1/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A LOUD SPEAKER ENCLOSURE COMPRISING; A SOLID FRONT WALL; LEFT AND RIGHT SIDE WALLS; A REAR WALL; TOP AND BOTTOM WALLS; AND A VERTICAL CENTRAL PARTITION EXTENDING NORMALLY BETWEEN SAID FRONT AND REAR WALLS TO DIVIDE THE INTERIOR OF SAID ENCLOSURE INTO LEFT AND RIGHT SPEAKER CHAMBERS, SAID LEFT AND RIGHT SIDE WALLS RESPECTIVELY HAVING OPENINGS FOR ACCOMMODATING LEFT AND RIGHT SPEAKERS, SAID CHAMBERS INCLUDING SIDE SUPPORTS AND BACK PANELS DEFINING WITH OPPOSITE FRONT PORTIONS OF SAID PARTITION AND INSIDE SURFACE PORTIONS OF SAID FRONT WALL, CHANNELS HAVING UPPER OPENINGS WITHIN SAID CHAMBERS AND LOWER ENDS TERMINATING IN SLOTS ALONG THE INTERSECTION OF SAID FRONT WALL AND BOTTOM WALL OPENING DOWNWARDLY PAST SAID BOTTOM WALL AND AROUND THE LOWER EDGE OF SAID FRONT WALL TO THE EXTERIOR OF SAID ENCLOSURE, THE LONGER DIMENSIONS OF SAID CHANNELS BEING VARIABLE TO TUNE SAID CHAMBERS.
Claim 2
Dependent Claim
142 words
A LOUD SPEAKER ENCLOSURE COMPRISING; A SOLID FRONT WALL; LEFT AND RIGHT SIDE WALLS; A REAR WALL; TOP AND BOTTOM WALLS; AND A VERTICAL CENTRAL PARTITION EXTENDING NORMALLY BETWEEN SAID FRONT AND REAR WALLS TO DIVIDE THE INTERIOR OF SAID ENCLOSURE INTO LEFT AND RIGHT SPEAKER CHAMBERS, SAID LEFT AND RIGHT SIDE WALLS RESPECTIVELY HAVING OPENINGS FOR ACCOMMODATING LEFT AND RIGHT SPEAKERS, SAID CHAMBERS INCLUDING SIDE SUPPORTS AND BACK PANELS DEFINING WITH OPPOSITE FRONT PORTIONS OF SAID PARTITION AND INSIDE SURFACE PORTIONS OF SAID FRONT WALL, CHANNELS HAVING UPPER OPENINGS WITHIN SAID CHAMBERS AND LOWER ENDS TERMINATING IN SLOTS ALONG THE INTERSECTION OF SAID FRONT WALL AND BOTTOM WALL OPENING DOWNWARDLY PAST SAID BOTTOM WALL AND AROUND THE LOWER EDGE OF SAID FRONT WALL TO THE EXTERIOR OF SAID ENCLOSURE, THE LONGER DIMENSIONS OF SAID CHANNELS BEING VARIABLE TO TUNE SAID CHAMBERS.
References Cited (Backward Citations)
DE20852C
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US2129184A
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US2137032A
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US2205804A
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US2476572A
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US2710662A
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US2973824A
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US2969848A
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FR73899E
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |