Granted Patent
Utility
US 5,350,487 · App. 08/057,005
Method of etching polyimide
Inventors:
Thomas J. Ameen, John A. Payak, Jerome M. Cangelosi
Patented Case
View Patent ↗
Granted: Sep 27, 1994
Filed: May 3, 1993
Inventors
Thomas J. Ameen
John A. Payak
Jerome M. Cangelosi
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.