Patent US3105113A successfully refreshed from Google Patents.
US3105113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereophonic loudspeaker system
Assignee: RCA Corp
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Filing: 1960-07-15
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Granted: 1963-09-24
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Expires: 1980-07-15
Abstract
No abstract record available.
Inventors
- 👤 Harry F Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:45
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/32; H04R1/34; H04R1/345; H04R5/00; H04R5/02; H04R2205/00; H04R2205/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A STEREOPHONIC LOUDSPEAKER SYSTEM FOR THE REPRODUCTION OF SOUND IN AUDITORY PERSPECTIVE, COMPRISING, IN COMBINATION, A CABINET HAVING TWO END WALLS WITH A SOUNDCONDUCTING OPENING IN EACH OF SAID WALLS AND A FRONT WALL, A PAIR OF LOUDSPEAKER UNITS MOUNTED IN SAID CABINET EACH ANGULARLY FACING FRONTALLY AND OUTWARDLY TOWARD AN ADJACENT END WALL OPENING, MEANS PROVIDING A SOUND-DIRECTING WAVE GUIDE ACOUSTICALLY CONNECTING EACH OF SAID LOUDSPEAKER UNITS WITH THE ADJACENT END WALL OPENING FOR CONDUCTING SOUND WAVES THEREFROM IN AUDITORY PERSPECTIVE OUTWARDLY AND FORWARDLY WITH RESPECT TO THE ENDS OF SAID CABINET, SAID SOUND DIRECTING WAVE GUIDE COMPRISING A PLURALITY OF VANES OF DIFFERING LENGTHS EXTENDING FROM A LOUDSPEAKER UNIT TO ITS ADJACENT END WALL, SAID VANES INCREASING IN LENGTH FROM THE BACK TOWARDS THE FRONT OF SAID CABINET AND MEANS PROVIDING A STEREOPHONIC SOUND-SIGNAL SOURCE CONNECTED WITH SAID LOUDSPEAKER UNITS IN TWOCHANNEL STEREOPHONIC OPERATING RELATION.
Claim 2
Dependent Claim
147 words
A STEREOPHONIC LOUDSPEAKER SYSTEM FOR THE REPRODUCTION OF SOUND IN AUDITORY PERSPECTIVE, COMPRISING, IN COMBINATION, A CABINET HAVING TWO END WALLS WITH A SOUNDCONDUCTING OPENING IN EACH OF SAID WALLS AND A FRONT WALL, A PAIR OF LOUDSPEAKER UNITS MOUNTED IN SAID CABINET EACH ANGULARLY FACING FRONTALLY AND OUTWARDLY TOWARD AN ADJACENT END WALL OPENING, MEANS PROVIDING A SOUND-DIRECTING WAVE GUIDE ACOUSTICALLY CONNECTING EACH OF SAID LOUDSPEAKER UNITS WITH THE ADJACENT END WALL OPENING FOR CONDUCTING SOUND WAVES THEREFROM IN AUDITORY PERSPECTIVE OUTWARDLY AND FORWARDLY WITH RESPECT TO THE ENDS OF SAID CABINET, SAID SOUND DIRECTING WAVE GUIDE COMPRISING A PLURALITY OF VANES OF DIFFERING LENGTHS EXTENDING FROM A LOUDSPEAKER UNIT TO ITS ADJACENT END WALL, SAID VANES INCREASING IN LENGTH FROM THE BACK TOWARDS THE FRONT OF SAID CABINET AND MEANS PROVIDING A STEREOPHONIC SOUND-SIGNAL SOURCE CONNECTED WITH SAID LOUDSPEAKER UNITS IN TWOCHANNEL STEREOPHONIC OPERATING RELATION.
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |