Double flexible keel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Aug 11, 2005
app pub date -
Sep 29, 2004
filing date -
Nov 13, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
Water Craft or amphibious vehicle, includes a hull fitted with at least one elongate longitudinal keel; which may be extruded from natural or synthetic rubber. The keel has base, and at least two dependent keel members, which in steady state conditions slant downwards to port and starboard. If the keel is grounded, keel members deform elastically upwards against the base, absorbing shock. Keel members can be pushed down by water pressure, acting as dependent keels or. This may occur when cornering, or when planing. Stops act against stops on the base, so that when keel member is pushed downwards by water pressure, it cannot be forced beyond vertically dependent position. Alternatively, discrete keels may be provided on either side of the hull.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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GIBBS TECHNOLOGIES LIMITED | MURDOCH HOUSE SOUTH QUAY DOUGLAS ISLE OF MAN IMI 5AS |
International Classification(s)

- 2004 Application Filing Year
- B63B Class
- 388 Applications Filed
- 146 Patents Issued To-Date
- 37.63 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Jenkins, Neil Graham | Warwickshire, GB | 17 | 64 |
# of filed Patents : 17 Total Citations : 64 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- B63B Class
- 7.20 % this patent is cited more than
- 20 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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