Patent US3226671A successfully refreshed from Google Patents.
US3226671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound source
Assignee: Individual
•
Filing: 1962-04-03
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Granted: 1965-12-28
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Expires: 1982-04-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis R Padberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:56
CPC Classifications
G; G10; G10K; G10K5/00; G10K5/02; G01; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
SOUND SOURCE COMPRISING IN COMBINATION, A RESONANT CHAMBER, MEANS DISPOSED WITHIN SAID RESONANT CHAMBER FOR GENERATING ASCOUSTICAL ENERGY THEREIN FOR EFFECTING VIBRATORY EXCITATION THEREOF, AND MEANS DISPOSED EXTERNAL OF SAID RESONANT CHAMBER IN THE PATH OF SID GENERATED ACOUSTICAL ENERGY FOR REFLECTING SAME BACK THERETO IN PHASE WITH THE VIBRATION THEREOF.
Claim 2
Dependent Claim
51 words
SOUND SOURCE COMPRISING IN COMBINATION, A RESONANT CHAMBER, MEANS DISPOSED WITHIN SAID RESONANT CHAMBER FOR GENERATING ASCOUSTICAL ENERGY THEREIN FOR EFFECTING VIBRATORY EXCITATION THEREOF, AND MEANS DISPOSED EXTERNAL OF SAID RESONANT CHAMBER IN THE PATH OF SID GENERATED ACOUSTICAL ENERGY FOR REFLECTING SAME BACK THERETO IN PHASE WITH THE VIBRATION THEREOF.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |