Granted Patent
Utility
US 5,338,400 · App. 08/023,188
Micromachining process for making perfect exterior corner in an etchable substrate
Inventor:
John H. Jerman
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Feb 25, 1993
Inventor
John H. Jerman
Assignee (at issue)
IC Sensors, 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.