Maruta Electric Boatworks LLC

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7335071 Electronic shut off systemsExpiredNov 28, 05Feb 26, 08[B63H]
6676460 Electronic propeller guardExpiredJul 03, 02Jan 13, 04[B63H]
6659815 Efficient motors and controls for watercraftExpiredJun 10, 02Dec 09, 03[B63H]
6571722 Computer controlled watercraftExpiredAug 13, 01Jun 03, 03[B63B]
6532884 High speed electric watercraftExpiredJun 11, 01Mar 18, 03[B63B]
6273015 Stabilized electric watercraft for high speed cruising, diving and sailingExpiredMay 01, 00Aug 14, 01[B63B]
6073569 Advantageous use of battery mass in electric watercraftExpiredFeb 18, 99Jun 13, 00[B63B]

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