Granted Patent
Utility
US 4,306,175 · App. 06/125,999
Induction plasma system
Inventors:
Robert G. Schleicher, Stanley Benjamin Smith, George A. McLean
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: Feb 29, 1980
Inventors
Robert G. Schleicher
Stanley Benjamin Smith
George A. McLean
Assignee (at issue)
Instrumentation Laboratory Company
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.