Patent US2209681A successfully refreshed from Google Patents.
Patent US3268081A successfully refreshed from Google Patents.
US3268081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water skimmer boat
Assignee: DUNKERLEY
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Filing: 1964-01-08
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Granted: 1966-08-23
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Expires: 1984-01-08
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Menkee
- 👤 Dunkerley Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:28
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A WATER SKIMMER BOAT COMPRISING A PAIR OF GENERALLY PARALLEL ELONGATED HULL MEMBERS, ELONGATED TRANSVERSE BRACE MEMBERS INTERCONNECTING SAID HULL MEMBERS, AND AN ELONGATED CHANNEL-SHAPED SCOOP EXTENDING LONGITUDINALLY OF SAID BOAT BETWEEN SAID HULL MEMBERS INCLUDING A PAIR OF UPSTANDING SIDE WALLS INTERCONNECTED BY MEANS OF A FORAMAINATED BOTTOM WALL AND CLOSED AT ONE END BY MEANS OF AN UPSTANDING END WALL, MEANS PIVOTALLY SUPPORTING SAID ONE END OF SAID SCOOP BETWEEN THE CORRESPONDING ENDS OF SAID HULL MEMBERS FOR MOVEMENT ABOUT A GEN-
Claim 2
Dependent Claim
84 words
A WATER SKIMMER BOAT COMPRISING A PAIR OF GENERALLY PARALLEL ELONGATED HULL MEMBERS, ELONGATED TRANSVERSE BRACE MEMBERS INTERCONNECTING SAID HULL MEMBERS, AND AN ELONGATED CHANNEL-SHAPED SCOOP EXTENDING LONGITUDINALLY OF SAID BOAT BETWEEN SAID HULL MEMBERS INCLUDING A PAIR OF UPSTANDING SIDE WALLS INTERCONNECTED BY MEANS OF A FORAMAINATED BOTTOM WALL AND CLOSED AT ONE END BY MEANS OF AN UPSTANDING END WALL, MEANS PIVOTALLY SUPPORTING SAID ONE END OF SAID SCOOP BETWEEN THE CORRESPONDING ENDS OF SAID HULL MEMBERS FOR MOVEMENT ABOUT A GEN-
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |