Patent US3090939A successfully refreshed from Google Patents.
US3090939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tessellated electromechanical transducer element
Assignee: Individual
•
Filing: 1953-05-13
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Granted: 1963-05-21
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Expires: 1973-05-13
Abstract
No abstract record available.
Inventors
- 👤 Massa Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:05
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0607; B06B1/0622
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
AN ELECTROMECHANICAL TRANSDUCER ELEMENT ADAPTED FOR USE IN A HYDROPHONE IN CONNECTION WITH UNDERWATER SOUND SYSTEMS, SAID ELEMENT COMPRISING A CIRCULAR DISC, SAID DISC INCLUDING A CENTRAL HEXAGONAL PLATE AND SIX PERIPHERAL PLATES SURROUNDING SAID CENTRAL HEXAGONAL PLATE A THIN LAYER OF CORPRENE INSULATION DISPOSED BETWEEN MATCHING FACES OF THE PLATES INCLUDED IN SAID DISC, EACH PERIPHERAL PLATE COMPRISING A PARTIAL HEXAGON HAVING THREE ADJOINING HEXAGONAL SIDES OF DIMENSIONS AT THE SAME AS THE SIDES OF SAID CENTRAL HEXAGONAL PLATE AND AN ARCUATE SIDE JOINING THE ENDS OF TWO OF ITS HEXAGONAL SIDES AND WHOSE RADIUS IS APPROXIMATELY TWICE THE LENGTH OF ONE OF SAID HEXAGONAL SIDES, AND SAID CENTRAL AND PERIPHERAL PLATES FORMING A TESSELLATED PATTERN.
Claim 2
Dependent Claim
117 words
AN ELECTROMECHANICAL TRANSDUCER ELEMENT ADAPTED FOR USE IN A HYDROPHONE IN CONNECTION WITH UNDERWATER SOUND SYSTEMS, SAID ELEMENT COMPRISING A CIRCULAR DISC, SAID DISC INCLUDING A CENTRAL HEXAGONAL PLATE AND SIX PERIPHERAL PLATES SURROUNDING SAID CENTRAL HEXAGONAL PLATE A THIN LAYER OF CORPRENE INSULATION DISPOSED BETWEEN MATCHING FACES OF THE PLATES INCLUDED IN SAID DISC, EACH PERIPHERAL PLATE COMPRISING A PARTIAL HEXAGON HAVING THREE ADJOINING HEXAGONAL SIDES OF DIMENSIONS AT THE SAME AS THE SIDES OF SAID CENTRAL HEXAGONAL PLATE AND AN ARCUATE SIDE JOINING THE ENDS OF TWO OF ITS HEXAGONAL SIDES AND WHOSE RADIUS IS APPROXIMATELY TWICE THE LENGTH OF ONE OF SAID HEXAGONAL SIDES, AND SAID CENTRAL AND PERIPHERAL PLATES FORMING A TESSELLATED PATTERN.
References Cited (Backward Citations)
US2380931A
Cited
US2406792A
Cited
US2269403A
Cited
US2413462A
Cited
US2405604A
Cited
US2520938A
Cited
US2564562A
Cited
US2521642A
Cited
US2601300A
Cited
US2508544A
Cited
GB702534A
Cited
US2748369A
Cited
US2844809A
Cited
US2797399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |