Granted Patent
Utility
US 4,424,096 · App. 06/452,680
R-F Electrode type workholder and methods of supporting workpieces during R-F powered reactive treatment
Inventor:
Henry Y. Kumagai
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Dec 23, 1982
Inventor
Henry Y. Kumagai
Assignee (at issue)
Western Electric Company, Inc.
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.