US3113633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereophonic sound system
Assignee: Individual
•
Filing: 1960-11-04
•
Granted: 1963-12-10
•
Expires: 1980-11-04
Abstract
No abstract record available.
Inventors
- 👤 John F Eberhardt
- 👤 James A Eberhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:15
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/04; A; A47; A47C; A47C7/00; A47C7/62; A47C7/72; A47C7/727; H04R5/02; Y; Y10; Y10S; Y10S5/00; Y10S5/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A STEREOPHONIC SOUND SYSTEM, COMPRISING A CABINET IN THE FORM OF AN ELONGATE SEAT HAVING A NORMALLY CLOSED, BOX-LIKE FRAME PROVIDING CHAMBERS WITHIN ITS OPPOSITE ENDS AND AN ELONGATE SEATING AREA UPWARDLY THEREOF; A STEREO SOUND REPRODUCER AND A SET OF SPEAKERS MOUNTED WITHIN THE CHAMBER IN ONE END PORTION OF SAID FRAME AND ANOTHER SET OF SPEAKERS MOUNTED WITHIN THE CHAMBER IN THE OTHER END PORTION OF SAID FRAME, SAID SPEAKERS BEING
Claim 2
Dependent Claim
73 words
A STEREOPHONIC SOUND SYSTEM, COMPRISING A CABINET IN THE FORM OF AN ELONGATE SEAT HAVING A NORMALLY CLOSED, BOX-LIKE FRAME PROVIDING CHAMBERS WITHIN ITS OPPOSITE ENDS AND AN ELONGATE SEATING AREA UPWARDLY THEREOF; A STEREO SOUND REPRODUCER AND A SET OF SPEAKERS MOUNTED WITHIN THE CHAMBER IN ONE END PORTION OF SAID FRAME AND ANOTHER SET OF SPEAKERS MOUNTED WITHIN THE CHAMBER IN THE OTHER END PORTION OF SAID FRAME, SAID SPEAKERS BEING
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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |