Granted Patent
Utility
US 4,564,379 · App. 06/616,103
Method for ablating liquefaction of materials
Inventors:
Gerald E. Kunkle, Joseph M. Matesa
Patented Case
View Patent ↗
Granted: Jan 14, 1986
Filed: Jun 1, 1984
Inventors
Gerald E. Kunkle
Joseph M. Matesa
Assignee (at issue)
PPG Industries, 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.