Patent US3142353A successfully refreshed from Google Patents.
US3142353A
Expired / Lapsed
US
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Speaker enclosure
Assignee: Individual
•
Filing: 1962-10-25
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Granted: 1964-07-28
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Expires: 1982-10-25
Abstract
No abstract record available.
Inventors
- 👤 Carmine V Todisco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:25
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2807; H04R1/2815; H04R1/2823; H04R1/2826; H04R2205/00; H04R2205/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A SOUND REPRODUCING DEVICE COMPRISING, POWER DRIVEN MEANS, SOUND RADIATING MEANS MOUNTING SAID POWER DRIVEN MEANS AND RESPONSIVE TO ENERGIZATION THEREOF FOR EFFECTING DIRECT RADIATION OF SOUND ENERGY IN A FORWARD DIRECTION, REFLEX CHAMBER MEANS MOUNTED REARWARDLY OF SAID RADIATING MEANS FOR CONDUCTING REARWARDLY DIRECTED SOUND ENERGY FROM SAID SOUND RADIATING MEANS, SAID CHAMBER MEANS HAVING A VOLUME SUBSTANTIALLY EQUAL TO THE VOLUME OCCUPIED BY A MASS OF AIR THAT WOULD BE DISPLACED BY THE RADIATING MEANS FOR PROPAGATION OF SOUND ENERGY THROUGH A SINGLE EQUIVALENT REAR LOADED EXPONENTIAL HORN HAVING A CERTAIN LENGTH, THROAT AND MOUTH AREAS DESIGNED FOR OPTIMUM SOUND REPRODUCTION WITH SAID REFLEX CHAMBER MEANS, AND A PLURALITY OF DIMENSIONALLY REDUCED EXPONEN-
Claim 2
Dependent Claim
115 words
A SOUND REPRODUCING DEVICE COMPRISING, POWER DRIVEN MEANS, SOUND RADIATING MEANS MOUNTING SAID POWER DRIVEN MEANS AND RESPONSIVE TO ENERGIZATION THEREOF FOR EFFECTING DIRECT RADIATION OF SOUND ENERGY IN A FORWARD DIRECTION, REFLEX CHAMBER MEANS MOUNTED REARWARDLY OF SAID RADIATING MEANS FOR CONDUCTING REARWARDLY DIRECTED SOUND ENERGY FROM SAID SOUND RADIATING MEANS, SAID CHAMBER MEANS HAVING A VOLUME SUBSTANTIALLY EQUAL TO THE VOLUME OCCUPIED BY A MASS OF AIR THAT WOULD BE DISPLACED BY THE RADIATING MEANS FOR PROPAGATION OF SOUND ENERGY THROUGH A SINGLE EQUIVALENT REAR LOADED EXPONENTIAL HORN HAVING A CERTAIN LENGTH, THROAT AND MOUTH AREAS DESIGNED FOR OPTIMUM SOUND REPRODUCTION WITH SAID REFLEX CHAMBER MEANS, AND A PLURALITY OF DIMENSIONALLY REDUCED EXPONEN-
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |