US3562703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Echo sound pulse receiving and processing apparatus
Assignee: Fried Krupp AG
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Filing: 1969-07-23
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Granted: 1971-02-09
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Expires: 1989-07-23
Abstract
Abstract AN ECHO SOUNDING ARRANGEMENT USING BOTH AMPLITUDE AND WIDTH FILTERING FOR DISTINGUISHING BETWEEN BOTTOM ECHOES AND ECHOES FROM SUBMERGED FLOATING OBJECTS WHOSE DIMENSIONS ARE LESS THAN A PREDETERMINED AMOUNT.
Inventors
- 👤 Walter Grada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:38
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/02; G01S15/04; G01S15/06; G01S15/08; G01S15/10; G01S15/14; G01S7/00; G01S7/52; G01S7/523; G01S7/526; G01S7/527; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |