Patent US3570256A successfully refreshed from Google Patents.
US3570256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable berth
Assignee: YE DOCK MASTER Inc
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Filing: 1969-07-15
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Granted: 1971-03-16
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Expires: 1989-07-15
Abstract
Abstract AN INFLATABLE BERTH FOR COVERING THE WATER-SUBMERGED PORTION OF A BOAT HULL, COMPRISING AN INFLATABLE, WATERPROOF, FLEXIBLE ENVELOPE, HAVING A QUILTED INTERIOR SURFACE ADAPTED TO GENERALLY CONFORM TO THE CONFIGURATION OF A BOAT HULL, AND MEANS FOR INFLATING THE ENVELOPE FOR CLOSE CONTACT OF THE QUILTED SURFACE WITH THE BOAT HULL WHEREBY TO ENTRAIN WATER AGAINST THE HULL FOR STAGNATION OF THE ENTRAINED WATER.
Inventors
- 👤 Kenneth L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:37
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/04; B63B59/045
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |