Granted Patent
Utility
US 5,215,592 · App. 07/643,627
Dense fluid photochemical process for substrate treatment
Inventor:
David Jackson
Patented Case
View Patent ↗
Granted: Jun 1, 1993
Filed: Jan 22, 1991
Inventor
David Jackson
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.