Granted Patent
Utility
US 5,548,372 · App. 08/342,258
PCB tooling apparatus for forming patterns on both sides of a substrate
Inventors:
Paul E. Schroeder, Michael Tobkin
Patented Case
View Patent ↗
Granted: Aug 20, 1996
Filed: Nov 18, 1994
Inventors
Paul E. Schroeder
Michael Tobkin
Assignee (at issue)
Cray Research, Inc.
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.