US3561150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for locating shrimp and like marine animals
Assignee: Individual
•
Filing: 1969-07-31
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Granted: 1971-02-09
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Expires: 1989-07-31
Abstract
Abstract A TRY NET IS PROVIDED WITH AN ACOUSTIC-ELECTROTRANSDUCER WHICH TRANSMITS ELECTRICAL OSCILLATIONS TO A REMOTE FILTER DEVICE. THE FILTER DEVICE IS TUNED TO ISOLATE THE CHARACTERISTIC VIRBRATIONS PRODUCED BY SELECTED MARINE ANIMALS AND THE SIGNALS THEREFROM ARE TRANSMITTED TO AN INDICATOR.
Inventors
- 👤 Albert B Silchenstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:10
CPC Classifications
A; A01; A01K; A01K80/00; A01K73/00; A01K73/02; A01K79/00
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 |