US3158762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bilaminar transducers
Assignee: Individual
•
Filing: 1962-12-27
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Granted: 1964-11-24
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 John J Horan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:46
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A TRANSDUCER, A FIRST RELATIVELY THIN SENSITIVE ELEMENT IN THE FORM OF AN ANNULAR RING HAVING EXPOSED FACES AND INNER AND OUTER CIRCUMFERENTIAL AREAS, A SECOND RELATIVELY THIN SENSITIVE ELEMENT IN THE FORM OF AN ANNUAL RING HAVING EXPOSED FACES AND INNER AND OUTER CIRCUMFERENTIAL AREAS, AN OUTER METALLIC SUPPORT RING MEANS SECURED TO SAID OUTER CIRCUMFERENTIAL AREAS AND AN INNER METALLIC SUPPORT RING MEANS SECURED TO SAID INNER CIRCUMFERENTIAL AREAS, SAID RING MEANS BEING INTERPOSED BETWEEN SAID FIRST AND SECOND ANNULAR ELEMENTS FOR SUPPORTING SAID ELEMENTS AND FORMING AN AIR GAP THEREBETWEEN, AND ELECTRODE MEANS FORMED ON SAID EXPOSED FACES OF SAID FIRST AND SECOND ANNULAR ELEMENTS.
Claim 2
Dependent Claim
109 words
IN A TRANSDUCER, A FIRST RELATIVELY THIN SENSITIVE ELEMENT IN THE FORM OF AN ANNULAR RING HAVING EXPOSED FACES AND INNER AND OUTER CIRCUMFERENTIAL AREAS, A SECOND RELATIVELY THIN SENSITIVE ELEMENT IN THE FORM OF AN ANNUAL RING HAVING EXPOSED FACES AND INNER AND OUTER CIRCUMFERENTIAL AREAS, AN OUTER METALLIC SUPPORT RING MEANS SECURED TO SAID OUTER CIRCUMFERENTIAL AREAS AND AN INNER METALLIC SUPPORT RING MEANS SECURED TO SAID INNER CIRCUMFERENTIAL AREAS, SAID RING MEANS BEING INTERPOSED BETWEEN SAID FIRST AND SECOND ANNULAR ELEMENTS FOR SUPPORTING SAID ELEMENTS AND FORMING AN AIR GAP THEREBETWEEN, AND ELECTRODE MEANS FORMED ON SAID EXPOSED FACES OF SAID FIRST AND SECOND ANNULAR ELEMENTS.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |