Granted Patent
Utility
US 5,017,199 · App. 07/415,827
Spent solvent recovery in circuit processing
Inventor:
Eduard E. Etchepare
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Oct 2, 1989
Inventor
Eduard E. Etchepare
Assignee (at issue)
Rockwell International Corporation
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.