Granted Patent
Utility
US 4,590,091 · App. 06/682,406
Photochemical process for substrate surface preparation
Inventors:
Harvey N. Rogers, Jr., James T. Hall
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Dec 17, 1984
Inventors
Harvey N. Rogers, Jr.
James T. Hall
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.