DRAEGER MEDICAL, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6863068 Ventilation sound detection systemExpiredJul 25, 02Mar 08, 05[A61M]
6564084 Magnetic field shielding and detecting device and method thereofExpiredMar 02, 01May 13, 03[A61B]
5657747 Interface for vaporizer interlockExpiredApr 22, 96Aug 19, 97[A62B, F23D, A61M]
5231981 Display panel with pistol grip for use with anesthesia apparatusExpiredMar 20, 91Aug 03, 93[G06F]
D312307 Combined housing and control panel of an anesthesia machineExpiredJan 23, 87Nov 20, 90[]
4776339 Interlock for oxygen saturation monitor anesthesia apparatusExpiredMar 05, 87Oct 11, 88[A61B]
4328823 Oxygen flow ratio controller for anesthesia apparatusExpiredMay 14, 80May 11, 82[G05D]
4307718 Vaporizer interlockExpiredFeb 01, 80Dec 29, 81[A61M]
4295465 Laryngoscope bladeExpiredApr 03, 80Oct 20, 81[A61B]

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