US2998591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audible fish alarms
Assignee: Raytheon Co
•
Filing: 1955-01-21
•
Granted: 1961-08-29
•
Expires: 1975-01-21
Abstract
No abstract record available.
Inventors
- 👤 Lovett Joseph Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/88; G01S15/96; A; A01; A01K; A01K79/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2400309A
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US2494339A
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US2428058A
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US2527769A
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GB640504A
Cited
US2491020A
Cited
US2788509A
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US2710787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |