Santek, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4597780 Electro-inertial precipitator unitExpiredMar 09, 82Jul 01, 86[B03C]
4529418 Inlet section for inertial-electrostatic precipitator unitExpiredJan 15, 82Jul 16, 85[B03C]
4388089 Self-cleaning electro-inertial precipitator unitExpiredJan 15, 82Jun 14, 83[B03C]
4354268 Intelligent test head for automatic test systemExpiredApr 03, 80Oct 12, 82[G06F, G01R]
4316231 Protective transfer assembly for semiconductor devicesExpiredJun 13, 80Feb 16, 82[H05F]
4315210 Bridge-balancing system for measuring extremely low currentsExpiredJan 07, 80Feb 09, 82[G01R]
4308038 Inertial-electrostatic wet precipitatorExpiredFeb 28, 80Dec 29, 81[B03C]
4259676 Thermal print headExpiredJul 30, 79Mar 31, 81[G01D]
4251775 Ion flux density probeExpiredMar 01, 79Feb 17, 81[G01N]
4232355 Ionization voltage sourceExpiredJan 08, 79Nov 04, 80[H01T]
4230466 Discharge electrode structure for electrostatic precipitatorExpiredMay 10, 79Oct 28, 80[B03C]

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