Patent US3618150A successfully refreshed from Google Patents.
US3618150A
Expired / Lapsed
US
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Beacon buoy marker containing lifesaving and signaling devices
Assignee: Individual
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Filing: 1969-03-04
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Granted: 1971-11-09
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Expires: 1989-03-04
Abstract
Abstract A BUOY FOR MARKING THE LOCATION OF A SUNKEN CRAFT. THE BUOY CONTAINS LIFESAVING AND SPINALING EQUIPMENT. AN AUTOMATICALLY INFLATABLE RAFT CAN BE REMOVED BY A SURVIVOR AND A BLINKING LIGHT IS TURNED ON DURING THE TWILIGHT AND NIGHTIME TO SIGNAL A RESCUER. A NUMBER OF LIGHT REFLECTING PLATES REFLECT SUNLIGHT DURING THE DAYTIME TO PRODUCE A DAYTIME SIGNALING DEVICE.
Inventors
- 👤 James V Anselmi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:50
CPC Classifications
B; B63; B63B; B63B22/00; B63B22/24; B63B22/04; B63B22/08; B63B2201/00; B63B2201/04; B63B2201/08; B63B2201/12
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |