Granted Patent
Utility
US 5,086,972 · App. 07/561,118
Enhanced electrostatic paint deposition method and apparatus
Inventors:
David B. Chang, James E. Drummond
Patented Case
View Patent ↗
Granted: Feb 11, 1992
Filed: Aug 1, 1990
Inventors
David B. Chang
James E. Drummond
Assignee (at issue)
Hughes Aircraft 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.