US3149692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverberation loudspeaker
Assignee: Individual
•
Filing: 1962-05-31
•
Granted: 1964-09-22
•
Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Rehde Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:26
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2807; H04R1/2811; G; G10; G10K; G10K15/00; G10K15/08; G10K15/10; H04R1/283; H04R1/2834
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A REVERBERATION LOUDSPEAKER COMPRISING A BOX PROVIDED IN ONE WALL WITH AN OPENING, A LOUDSPEAKER DIAPHRAGM INSIDE THE BOX CONNECTED AT ITS EDGE TO SAID WALL AROUND SAID OPENING, A SUBSTANTIALLY STRAIGHT COIL SPRING OUTSIDE SAID WALL EXTENDING ACROSS SAID OPENING, MEANS SUPPORTING THE OPPOSITE ENDS OF THE SPRING, AND MEANS CONNECTING THE MIDDLE PART OF THE SPRING TO SAID DIAPHRAGM FOR TRANSMITTING VIBRATIONS OF THE FIAPHRAGM TO THE SPRING.
Claim 2
Dependent Claim
70 words
A REVERBERATION LOUDSPEAKER COMPRISING A BOX PROVIDED IN ONE WALL WITH AN OPENING, A LOUDSPEAKER DIAPHRAGM INSIDE THE BOX CONNECTED AT ITS EDGE TO SAID WALL AROUND SAID OPENING, A SUBSTANTIALLY STRAIGHT COIL SPRING OUTSIDE SAID WALL EXTENDING ACROSS SAID OPENING, MEANS SUPPORTING THE OPPOSITE ENDS OF THE SPRING, AND MEANS CONNECTING THE MIDDLE PART OF THE SPRING TO SAID DIAPHRAGM FOR TRANSMITTING VIBRATIONS OF THE FIAPHRAGM TO THE SPRING.
References Cited (Backward Citations)
US2768235A
Cited
US2853145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |