US3181154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital range readout for sonar and radar
Assignee: Individual
•
Filing: 1962-08-07
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Granted: 1965-04-27
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Expires: 1982-08-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Henne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:43
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/56; G01S7/62; G01S7/6209; G01S7/02; G01S7/04; G01S7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A PULSE ECHO RANGING SYSTEM IN WHICH ECHOES OF TRANSMITTED PULSES RETURNED BY A DISTANT TARGET ARE UTILIZED TO BRIGHTEN A SPOT ON THE VIEWING SCREEN OF A CATHODE RAY TUBE, MEANS FOR TRANSMITTING PERIODICALLY PULSES TOWARD A DISTANT TARGET, A FIXED FREQUENCY OSCILLATOR HAVING AN OUTPUT, COUNTER, MEANS FOR RESETTING THE COUNTER AND FOR CONNECTING THE COUNTER TO THE OUTPUT OF SAID OSCILLATOR AT THE TIME A PULSE IS TRANSMITTED, MEANS INCLUDING A HAND MANIPULATED LIGHT SENSITIVE PROBE OPERATIVE WHEN PLACED OVER A BRIGHTENED SPOT ON SAID SCREEN FOR DISCONNECTING THE COUNTER FROM THE OUTPUT OF SAID OSCILLATOR THE COUNTER FROM ECHO PULSE BRIGHTENS SAID SPOT AND MEANS UNDER THE CONTROL OF AN OPERATOR FOR DISABLING SAID COUNTER RESETTING AND CONNECTING MEANS FOR ANY DESIRED INTERVAL OF TIME.
Claim 2
Dependent Claim
130 words
IN A PULSE ECHO RANGING SYSTEM IN WHICH ECHOES OF TRANSMITTED PULSES RETURNED BY A DISTANT TARGET ARE UTILIZED TO BRIGHTEN A SPOT ON THE VIEWING SCREEN OF A CATHODE RAY TUBE, MEANS FOR TRANSMITTING PERIODICALLY PULSES TOWARD A DISTANT TARGET, A FIXED FREQUENCY OSCILLATOR HAVING AN OUTPUT, COUNTER, MEANS FOR RESETTING THE COUNTER AND FOR CONNECTING THE COUNTER TO THE OUTPUT OF SAID OSCILLATOR AT THE TIME A PULSE IS TRANSMITTED, MEANS INCLUDING A HAND MANIPULATED LIGHT SENSITIVE PROBE OPERATIVE WHEN PLACED OVER A BRIGHTENED SPOT ON SAID SCREEN FOR DISCONNECTING THE COUNTER FROM THE OUTPUT OF SAID OSCILLATOR THE COUNTER FROM ECHO PULSE BRIGHTENS SAID SPOT AND MEANS UNDER THE CONTROL OF AN OPERATOR FOR DISABLING SAID COUNTER RESETTING AND CONNECTING MEANS FOR ANY DESIRED INTERVAL OF TIME.
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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |