US3517378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater long-distance sound-detection system
Assignee: United States Department of the Navy
•
Filing: 1959-11-06
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Granted: 1970-06-23
•
Expires: 1979-11-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/80; G01V; G01V1/00; G01V1/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD FOR UNDERWATER SOUND DETECTION AT GREAT DISTANCES FROM A TERMINAL RECEIVING STATION COMPRISING THE STEPS OF: RECEIVING UNDERWATER SOUNDS BY MEANS OF A SOUND TRANSDUCER LOCATED BETWEEN THE SURFACE OF THE WATER AND THE ROOF OF THE UNDERWATER SOUND CHANNEL, CONVERTING SAID RECEIVED SOUNDS INTO ELECTRICAL ANALOG SIGNALS, COUPLING SAID ANALOG SIGNALS TO A TRANSMITTING MEANS LOCATED WITHIN THE UNDERWATER SOUND CHANNEL, RE-CONVERTING SAID ANALOG SIGNALS INTO CORRESPONDING SOUND SIGNALS AND TRANSMITTING THEM WITHIN THE UNDERWATER SOUND CHAN-
Claim 2
Independent Claim
80 words
A METHOD FOR UNDERWATER SOUND DETECTION AT GREAT DISTANCES FROM A TERMINAL RECEIVING STATION COMPRISING THE STEPS OF: RECEIVING UNDERWATER SOUNDS BY MEANS OF A SOUND TRANSDUCER LOCATED BETWEEN THE SURFACE OF THE WATER AND THE ROOF OF THE UNDERWATER SOUND CHANNEL, CONVERTING SAID RECEIVED SOUNDS INTO ELECTRICAL ANALOG SIGNALS, COUPLING SAID ANALOG SIGNALS TO A TRANSMITTING MEANS LOCATED WITHIN THE UNDERWATER SOUND CHANNEL, RE-CONVERTING SAID ANALOG SIGNALS INTO CORRESPONDING SOUND SIGNALS AND TRANSMITTING THEM WITHIN THE UNDERWATER SOUND CHAN-
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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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |