Patent US3243769A successfully refreshed from Google Patents.
US3243769A
Expired / Lapsed
US
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Distributed coupling transducer
Assignee: Individual
•
Filing: 1962-08-30
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Granted: 1966-03-29
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Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Trott Winfield James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:53
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/06; B06B1/0644; B06B1/0655; B06B2201/00; B06B2201/50; B06B2201/55; B06B2201/58; B06B2201/70; B06B2201/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A SOUND TRANSDUCER COMPRISING: AN ELECTRICAL DELAY LINE; A MECHANICAL DELAY LINE; PORTIONS OF EACH OF SAID LINES BEING FORMED BY A COMMON PIEZOELECTRIC CAPACTIVE ELEMENT INCLUDING A PLURALITY OF HOLLOW CYLINDERS HAVING ELECTRODES ATTACHES TO THE CURVED SURFACES THEREOF, SAID CYLINDERS BEING AXIALLY ARRANGED WITH AT LEAST A FIRST ELECTRODE OF ADJACENT CYLINDERS SEPARATED, AND A CONDUCTING
Claim 2
Dependent Claim
58 words
A SOUND TRANSDUCER COMPRISING: AN ELECTRICAL DELAY LINE; A MECHANICAL DELAY LINE; PORTIONS OF EACH OF SAID LINES BEING FORMED BY A COMMON PIEZOELECTRIC CAPACTIVE ELEMENT INCLUDING A PLURALITY OF HOLLOW CYLINDERS HAVING ELECTRODES ATTACHES TO THE CURVED SURFACES THEREOF, SAID CYLINDERS BEING AXIALLY ARRANGED WITH AT LEAST A FIRST ELECTRODE OF ADJACENT CYLINDERS SEPARATED, AND A CONDUCTING
References Cited (Backward Citations)
US2404391A
Cited
US2930912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |