Granted Patent
Utility
US 4,483,343 · App. 06/349,453
Ultrasonic applicator
Inventors:
Johann Beyer, Walter Derndinger
Patented Case
View Patent ↗
Granted: Nov 20, 1984
Filed: Feb 17, 1982
Inventors
Johann Beyer
Walter Derndinger
Assignee (at issue)
Siemens Aktiengesellschaft
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.