Patent US3090976A successfully refreshed from Google Patents.
US3090976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible deep sea buoy
Assignee: General Dynamics Corp
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Filing: 1961-12-15
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Granted: 1963-05-28
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Expires: 1981-12-15
Abstract
No abstract record available.
Inventors
- 👤 John K Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:11
CPC Classifications
B; B63; B63B; B63B22/00; B63B22/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A BUOY COMPRISING A TUBULAR CARGO CONTAINER, TWO SPACED PARALLEL PLATFORM STRUCTURES ENCIRCLING SAID CONTAINER, A PLURALITY OF RUBBER-LIKE BAGS DISTRIBUTED ABOUT SAID CONTAINER BETWEEN SAID PLATFORM STRUCTURES, A STAY EXTENDING CENTRALLY THROUGH EACH BAG AND FLEXIBLY ATTACHED AT EACH END TO SAID PLATFORMS, SAID BAGS BEING ATTACHED AT OPPOSITE EXTREMITIES TO SAID STAYS, SAID BAGS CONTAINING A LIQUID OF RELATIVELY LOW SPECIFIC GRAVITY, THE QUANTITY OF SAID LIQUID BEING SUFFICIENT TO GIVE A NET LIFT TO SAID BUOY EQUAL TO OR GREATER THAN THE GROSS WEIGHT OF THE BUOY.
Claim 2
Dependent Claim
90 words
A BUOY COMPRISING A TUBULAR CARGO CONTAINER, TWO SPACED PARALLEL PLATFORM STRUCTURES ENCIRCLING SAID CONTAINER, A PLURALITY OF RUBBER-LIKE BAGS DISTRIBUTED ABOUT SAID CONTAINER BETWEEN SAID PLATFORM STRUCTURES, A STAY EXTENDING CENTRALLY THROUGH EACH BAG AND FLEXIBLY ATTACHED AT EACH END TO SAID PLATFORMS, SAID BAGS BEING ATTACHED AT OPPOSITE EXTREMITIES TO SAID STAYS, SAID BAGS CONTAINING A LIQUID OF RELATIVELY LOW SPECIFIC GRAVITY, THE QUANTITY OF SAID LIQUID BEING SUFFICIENT TO GIVE A NET LIFT TO SAID BUOY EQUAL TO OR GREATER THAN THE GROSS WEIGHT OF THE BUOY.
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |