Granted Patent
Utility
US 6,546,803 · App. 09/650,803
Ultrasonic array transducer
Inventors:
Andrei Ptchelintsev, Roman Gr. Maev
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Aug 30, 2000
Inventors
Andrei Ptchelintsev
Roman Gr. Maev
Assignee (at issue)
Daimlerchrysler AG
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.