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US3235028A Expired / Lapsed US ⏱️ 0.0 years remaining

High fidelity speaker enclosure

Assignee: Individual
•
Filing: 1965-02-25
•
Granted: 1966-02-15
•
Expires: 1985-02-25
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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)

US2160283A Cited
US2866513A Cited
US3131783A Cited

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

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