Patent USRE27640E successfully refreshed from Google Patents.
USRE27640E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable float boom
Assignee: —
•
Filing: 1970-09-25
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Granted: 1973-05-08
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Expires: 1990-09-25
Abstract
Abstract AN INFLATABLE FLOAT BOOM HAVING A PAIR OF ELONGATED SELECTIVELY INFLATABLE TUBES CONNECTED THROUGHOUT THEIR LENGTHS BY A JOINING WEB AND A PAIR OF ELONGATED HOLLOW MEMBERS FILLED WITH PARTICULATE SOLIDS ARE DISPOSED WITHIN RESPECTIVE TUBES, SUCH MEMBERS BEING FREE TO FALL INTO THE LOWER SIDE PORTIONS OF RESPECTIVE TUBES. A SEPARATE GAS VALVE IS CONNECTED TO EACH TUBE SO THAT ONE TUBE CAN BE INFLATED TO FLOAT THE BOOM ON THE SURFACE OF THE LIQUID AND THE DEFLATED TUBE FUNCTIONING AS A DEPENDING SKIRT THEREFORE. A SLEEVE IS PROVIDED BETWEEN THE END PORTIONS OF THE TUBES TO BRIDGE THE GAP AND TO SURROUND THE RELEASABLE CONNECTORS THERBETWEEN.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:57
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/08; E02B15/0814; E02B15/085; E02B15/0857; E02B15/0864
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |