US3307142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-color echo ranging display
Assignee: Individual
•
Filing: 1964-06-10
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Granted: 1967-02-28
•
Expires: 1984-06-10
Abstract
No abstract record available.
Inventors
- 👤 Harold J Doebler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:07
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/062
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
IN AN UNDERWATER ECHO RANGING APPARATUS HAVING A TRANSDUCER, A TRANSMITTER, AND RECEIVER, THE IMPROVEMENT COMPRISING: (A) A THREE GUN CATHODE RAY COLOR TUBE AND DEFLECTION MEANS FOR DIRECTING THE BEAM FROM EACH GUN TO IMPING THE TUBE FACE, ALONG A SELECTED TRACE PATH, (B) MEANS COUPLED TO THE TRANSMITTER AND TO THE DEFLECTION MEANS FOR SYNCHRONIZING THE OPERATION OF THE DEFLECTION MEANS AND THE TRANSMITTER, AND (C) MEANS COUPLED TO THE RECEIVER AND TO THE ELECTRONS GUNS TO RECORD ECHOES RETURNED BY EACH OF THREE SUCCESSIVE PULSES IN DIFFERENT PRIMARY COLORS WHEREBY RANDOM NOISE APPEARS ON THE DISPLAY IN ONE OF THE PRIMARY COLORS AND TARGET ECHOES CORRELATE AND APPEAR ON THE DISPLAY IN WHITE.
References Cited (Backward Citations)
US2901747A
Cited
GB722858A
Cited
GB740148A
Cited
GB889485A
Cited
US3114907A
Cited
US3064234A
Cited
US3156110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |