Patent US3136382A successfully refreshed from Google Patents.
US3136382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic transducer
Assignee: Individual
•
Filing: 1962-02-14
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Granted: 1964-06-09
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Expires: 1982-02-14
Abstract
No abstract record available.
Inventors
- 👤 Thaler Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:14
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/30; H04R1/227; H04R7/00; H04R7/02; H04R7/12; H04R7/122; H04R7/125; H04R1/28; H04R1/2807; H04R1/2853; H04R1/2857; H04R2307/00; H04R2307/021; H04R2307/025; H04R2307/029
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
AN ACOUSTICAL ENERGY TRANSDUCING DEVICE COMPRISING A DIAPHRAGM HAVING A VIBRATING ELEMENT OF UNIFORM THICKNESS THROUGHOUT AND EFFECTIVELY DIVIDED INTO N SUBSTANTIALLY CONCENTRIC CONTIGUOUS RING AREAS EACH HAVING A RESPECTIVE SURFACE WIDTH, COATING MEANS ON, AND INCREASING THE THICKNESS OF, AT LEAST N-1 OF SAID AREAS FOR CAUSING THE RESULTANT THICKNESSES OF ALL SAID RING AREAS TO BE DIFFERENT AND SUCCESSIVELY GREATER PROGRESSING OUTWARDLY FROM THE CENTER OF SAID DIAPHRAGM, AND A SET OF N SIMILARLY OUTWARDLY FLARING CONCENTRIC HORNS HAVING RESPECTIVE THROATS DISPOSED RESPECTIVELY ADJACENT SAID RINGS.
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |