US3084331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater search apparatus
Assignee: Honeywell Inc
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Filing: 1956-05-28
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Granted: 1963-04-02
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 John W Dudley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:52
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/72; Y; Y10; Y10S; Y10S367/00; Y10S367/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
156 words
SEARCH SONAR APPARATUS COMPRISING, IN COMBINATION: A DIRECTIONAL SONAR TRANSDUCER; A TRANSMITTER CONNECTED TO SAID TRANSDUCER FOR CAUSING EMISSION OF ENERGY AT AN ULTRASONIC FREQUENCY; MEANS KEYING SAID TRANSMITTER TO CAUSE SAID EMISSION TO TAKE THE FORM OF ENERGY PULSES AT SAID ULTRASONIC FREQUENCY; SIGNAL GENERATING MEANS CONNECTED TO SUPPLY FIRST POSITIVE SIGNAL PULSES TO SAID KEYING MEANS TO CAUSE OPERATION THEREOF WITH A PERIOD SELECTED IN ACCORDANCE WITH THE MAXIMUM DESIRED RANGE OF THE APPARATUS; RECEIVING MEANS CONNECTED TO SAID TRANSDUCER AND SAID KEYING MEANS FOR GIVING A SECOND POSITIVE PULSE UPON RECEPTION OF ANY REFLECTION OF A TRANSMITTED PULSE TO TERMINATE THE INTERPULSE PERIOD AND INITIATE TRANSMISSION OF A NEW PULSE; AND MEANS INCLUDING A BIASED CLAMPER CONNECTED TO SAID SIGNAL SOURCE AND SAID RECEIVING MEANS FOR ENERGIZATION WITH EACH SAID SECOND POSITIVE PULSE TO PREVENT ANY FIRST POSITIVE PULSE FROM KEYING SAID TRANSMITTER FOR AN INTERVAL CORRESPONDING IN LENGTH TO SAID INTERPULSE PERIOD.
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |