Rubber boat

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4723502
SERIAL NO

06947594

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed herein is a rubber boat including a boat body composed of a ring-shaped air barrel and a bottom cloth which is provided to be spread on the lower surface of the air barrel and has a mounting opening for receiving an air mat; and a boat bottom composed of the air mat. The air mat is fitted into the mounting opening, and the peripheral portion of the air mat and the marginal portion around the mounting opening are connected together by a connecting cord in such a manner as to define a drain space therebetween.

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Patent Owner(s)

Patent OwnerAddress
OKAMOTO INDUSTRIES INC27-12 HONGO 3-CHOME BUNKYO-KU TOKYO 1138710

International Classification(s)

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  • 1986 Application Filing Year
  • B63B Class
  • 243 Applications Filed
  • 1 Patents Issued To-Date
  • 0.42 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances198619870255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sayama, Tadayoshi Tochigi, JP 4 19

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Patent Citation Ranking

  • 6 Citation Count
  • B63B Class
  • 0 % this patent is cited more than
  • 37 Age
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