SONTRA MEDICAL, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0049,474 Preparation for transmission and reception of electrical signalsAbandonedSep 28, 04Mar 03, 05[A61B]
2004/0171,980 Method and apparatus for enhancement of transdermal transportAbandonedMar 05, 04Sep 02, 04[A61N]
2004/0087,879 Method and apparatus for producing homogenous cavitation to enhance transdermal transportAbandonedJun 23, 03May 06, 04[A61B]
6620123 Method and apparatus for producing homogenous cavitation to enhance transdermal transportExpiredJul 26, 01Sep 16, 03[A61B]
2003/0144,680 Portable ultrasonic scalpel/cautery deviceAbandonedJan 21, 03Jul 31, 03[A61B]
6491657 Ultrasound enhancement of transdermal transportExpiredMay 21, 01Dec 10, 02[A61B]
6234990 Ultrasound enhancement of transdermal transportExpiredJun 30, 97May 22, 01[A61B]

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