US3235028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High fidelity speaker enclosure
Assignee: Individual
•
Filing: 1965-02-25
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Granted: 1966-02-15
•
Expires: 1985-02-25
Abstract
No abstract record available.
Inventors
- 👤 William H Quinion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:19
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2807; H04R1/2815; H04R1/2823; H04R1/2826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
A LOUDSPEAKER ENCLOSURE COMPRISING, TOP, BACK, SIDE AND BOTTOM PANELS FORMING A RECTANGULAR ENCLOSURE HAVING AN OPEN VERTICAL FRONT, AND A FIRST INTERIOR VERTICAL PANEL MOUNTED ADJACENT SAID FRONT, AND INCLINED AT A PREDETERMINED ANGLE WITH RESPECT TO THE VERTICAL FRONT SIDE, SAID FIRST INTERIOR PANEL HAVING A CENTRAL OPENING OF PREDETERMINED DIMENSION, WITH A LOUDSPEAKER MOUNTED IN SAID OPENING, AND HAVING A SPEAKER CONE WITH A PREDETERMINED CONE ANGLE HAVING A WIDTH BEARING A SPECIFIC PREDETERMINED RATIO TO THE FIRST INTERIOR PANEL, SECOND AND THIRD INTERIOR PANELS HAVING WIDTHS OF SPECIFIC PREDETERMINED RATIOS TO THE FIRST INTERIOR PANEL, AND WHEREIN THE SECOND AND THIRD INTERIOR PANELS ARE BOTH PARALLEL TO THE FIRST INTERIOR PANEL, FURTHER INCLUDING A FOURTH INTERIOR PANEL JOINING A BACK AND SIDE PANEL AT A PREDETERMINED ANGLE, AND HAVING A WIDTH BEARING A SPECIFIC PREDETERMINED RATIO TO THE FIRST INTERIOR PANEL, AND A FIFTH INTERIOR PANEL EXTENDING INWARDLY FROM THE POINT OF INTERSECTION FROM THE FIRST INTERIOR PANEL AND THE FRONT PLANE AT A PREDETERMINED ANGLE TO SAID SIDE PANEL, AND SPACED FROM SAID SIDE PANEL, PROVIDING A PORT OF PREDETERMINED DIMENSION, AND WHEREIN THE HEIGHT OF ALL THE SAID PANELS IS A PREDETERMINED DIMENSION EXPRESSED IN A LINEAR ALGEBRAIC RELATIONSHIP INVOLVING THE WIDTH OF THE FIRST INTERIOR PANEL AND THE THICKNESS OF EACH PANEL.
Claim 2
Dependent Claim
219 words
A LOUDSPEAKER ENCLOSURE COMPRISING, TOP, BACK, SIDE AND BOTTOM PANELS FORMING A RECTANGULAR ENCLOSURE HAVING AN OPEN VERTICAL FRONT, AND A FIRST INTERIOR VERTICAL PANEL MOUNTED ADJACENT SAID FRONT, AND INCLINED AT A PREDETERMINED ANGLE WITH RESPECT TO THE VERTICAL FRONT SIDE, SAID FIRST INTERIOR PANEL HAVING A CENTRAL OPENING OF PREDETERMINED DIMENSION, WITH A LOUDSPEAKER MOUNTED IN SAID OPENING, AND HAVING A SPEAKER CONE WITH A PREDETERMINED CONE ANGLE HAVING A WIDTH BEARING A SPECIFIC PREDETERMINED RATIO TO THE FIRST INTERIOR PANEL, SECOND AND THIRD INTERIOR PANELS HAVING WIDTHS OF SPECIFIC PREDETERMINED RATIOS TO THE FIRST INTERIOR PANEL, AND WHEREIN THE SECOND AND THIRD INTERIOR PANELS ARE BOTH PARALLEL TO THE FIRST INTERIOR PANEL, FURTHER INCLUDING A FOURTH INTERIOR PANEL JOINING A BACK AND SIDE PANEL AT A PREDETERMINED ANGLE, AND HAVING A WIDTH BEARING A SPECIFIC PREDETERMINED RATIO TO THE FIRST INTERIOR PANEL, AND A FIFTH INTERIOR PANEL EXTENDING INWARDLY FROM THE POINT OF INTERSECTION FROM THE FIRST INTERIOR PANEL AND THE FRONT PLANE AT A PREDETERMINED ANGLE TO SAID SIDE PANEL, AND SPACED FROM SAID SIDE PANEL, PROVIDING A PORT OF PREDETERMINED DIMENSION, AND WHEREIN THE HEIGHT OF ALL THE SAID PANELS IS A PREDETERMINED DIMENSION EXPRESSED IN A LINEAR ALGEBRAIC RELATIONSHIP INVOLVING THE WIDTH OF THE FIRST INTERIOR PANEL AND THE THICKNESS OF EACH PANEL.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |