Patent US3374494A successfully refreshed from Google Patents.
US3374494A
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US
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Variable buoyancy messenger buoy
Assignee: WILLIAM H HUNLEY
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Filing: 1966-11-16
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Granted: 1968-03-26
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Expires: 1986-11-16
Abstract
No abstract record available.
Inventors
- 👤 William H Hunley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:30
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/26; B63B; B63B22/00; B63B22/04; B63B22/06; B63B2205/00; B63B2205/02; B63B2205/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A MESSENGER BOUY FOR CARRYING A MESSANGER LINE FROM A POSITION ON A SUBMERGED WRECK TO THE SURFACE, COMPRISING: A BUOYANT PORTION; A MESSENGER LINE; A FIRST COMPARTMENT POSITION FOR CONTAINING SAID MESSENGER LINE ATTACHED TO THE BUOYANT PORTION; A QUANTITY OF PARTICULATE MATERIAL HEAVIER THAN WATER; A SECOND COMPARTMENT PORTION ATTACHED TO THE BUOYANT PORTION FOR CONTAINING SAID QUANTITY OF PARTICULATE MATERIAL; AND A CONNECTOR-PLUG ATTACHED TO SAID MESSENGER LINE AND REMOVABLY SECURED TO SAID SECOND COMPARTMENT FOR PLUGGING BOTH SAID FIRST AND SECOND COMPARTMENT PORTIONS TO RETAIN SAID PARTICULATE MATERIAL.
Claim 2
Dependent Claim
92 words
A MESSENGER BOUY FOR CARRYING A MESSANGER LINE FROM A POSITION ON A SUBMERGED WRECK TO THE SURFACE, COMPRISING: A BUOYANT PORTION; A MESSENGER LINE; A FIRST COMPARTMENT POSITION FOR CONTAINING SAID MESSENGER LINE ATTACHED TO THE BUOYANT PORTION; A QUANTITY OF PARTICULATE MATERIAL HEAVIER THAN WATER; A SECOND COMPARTMENT PORTION ATTACHED TO THE BUOYANT PORTION FOR CONTAINING SAID QUANTITY OF PARTICULATE MATERIAL; AND A CONNECTOR-PLUG ATTACHED TO SAID MESSENGER LINE AND REMOVABLY SECURED TO SAID SECOND COMPARTMENT FOR PLUGGING BOTH SAID FIRST AND SECOND COMPARTMENT PORTIONS TO RETAIN SAID PARTICULATE MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |