Patent US3202962A successfully refreshed from Google Patents.
US3202962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer
Assignee: Honeywell Inc
•
Filing: 1959-09-03
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Granted: 1965-08-24
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Expires: 1979-09-03
Abstract
No abstract record available.
Inventors
- 👤 Alvin W Elston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:35
CPC Classifications
H; H04; H04R; H04R17/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A HYDROPHONE COMPRISING: A PAIR OF CARRIER PLATES; MOUNTING MEANS; A PAIR OF PIEZOELECTRIC ELEMENTS; AND MEANS FOR MAKING ELECTRICAL CONNECTIONS TO SAID PIEZOELECTRIC ELEMENTS, SAID CARRIER PLATES HAVING ROUNDED EDGES AND FLAT SURFACED CENTRAL PORTIONS, THE EDGES ADAPTED TO COACT WITH SAID MOUNTING MEANS TO MINIMIZE ANY RESTRICTION ON THE FREEDOM OF MOTION OF THE CENTRAL PORTIONS OF SAID CARRIER PLATES IN A DIRECTION NORMAL TO THE SURFACE OF THE CENTRAL PORTION, SAID MOUNTING MEANS ADAPTED TO HOLD SAID CARRIER PLATES IN BACK TO BACK RELATIONSHIP, SAID PIEZOELECTRIC ELEMENTS RESPECTIVELY ADHERENT TO SAID CARRIER PLATES, SAID CARRIER PLATES MOUNTING MEANS, PIEZO ELECTRIC ELEMENTS AND ELECTRICAL CONNECTING MEANS BEING ELECTRICAL ISOLATED FROM A SORROUNDING MEDIUM BY ENCAPSULATION WITH A SUTIABLE MATERIAL.
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |