Patent US3109112A successfully refreshed from Google Patents.
US3109112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double frequency transducer
Assignee: Individual
•
Filing: 1962-03-13
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Granted: 1963-10-29
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Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 Robert A Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:23
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/66; G01F1/662; G01N; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02836; Y; Y10; Y10S; Y10S367/00; Y10S367/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A DEVICE FOR PRODUCING AND RECEIVING A PLURALITY OF COMPRESSIONAL WAVE SAID DEVICE COMPRISING A FIRST TRANSDUCER WHICH IS ADAPTED TO TRANSMIT ENERGY AT A FIRST UNIQUE FREQUENCY; AND A SECOND TRANSDUCER CONCENTRIC TO THE FIRST TRANSDUCER SAID SECOND TRANSDUCER BEING ADAPTED TO RECEIVE ENERGY AT A SECOND UNIQUE FREQUENCY, THE DIMENSIONS OF SAID TRANSDUCERS BEING SUCH THAT THEIR ACOUSTIC CENTERS AND BEAM PATTERNS COINCIDE.
Claim 2
Independent Claim
65 words
A DEVICE FOR PRODUCING AND RECEIVING A PLURALITY OF COMPRESSIONAL WAVE SAID DEVICE COMPRISING A FIRST TRANSDUCER WHICH IS ADAPTED TO TRANSMIT ENERGY AT A FIRST UNIQUE FREQUENCY; AND A SECOND TRANSDUCER CONCENTRIC TO THE FIRST TRANSDUCER SAID SECOND TRANSDUCER BEING ADAPTED TO RECEIVE ENERGY AT A SECOND UNIQUE FREQUENCY, THE DIMENSIONS OF SAID TRANSDUCERS BEING SUCH THAT THEIR ACOUSTIC CENTERS AND BEAM PATTERNS COINCIDE.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |