LEHMKUHL, ROBERT A.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4784539 Tool communications methodExpiredMay 18, 88Nov 15, 88[B23B, B23C]
4778313 Intelligent tool systemExpiredMay 18, 87Oct 18, 88[B23B, G01B, B23C]
4752166 Probing deviceExpiredJan 02, 87Jun 21, 88[B23C]
4612831 Automatic boring toolExpiredFeb 19, 85Sep 23, 86[B23B]
4579487 Tool adapterExpiredSep 17, 84Apr 01, 86[B23B, B23C]

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