Patent US3072808A successfully refreshed from Google Patents.
US3072808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer plate for high acoustical-mechanical energy transfer to liquids
Assignee: California Institute Research Foundation
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Filing: 1959-08-04
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Granted: 1963-01-08
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Expires: 1979-08-04
Abstract
No abstract record available.
Inventors
- 👤 Milton S Plesset
- 👤 Robert E Devine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:26
CPC Classifications
B; B06; B06B; B06B3/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A TRANSDUCER, COMPRISING: A TRANSDUCER PLATE SUBMERGED IN A LIQUID; MEANS FOR SUBJECTING SAID PLATE TO VIBRATIONS OF AN INTENSITY CAPABLE OF PRODUCING A CAVITATION CLOUD OVER THE SURFACE THEREOF; A RIB BORDERING THE PERIPHERY OF SAID PLATE HAVING A HEIGHT LESS THAN SAID CAVITATION CLOUD TO PREVENT RADIAL FLOW OF LIQUID CONTIGUOUS TO THE SURFACE OF SAID PLATE.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |