Granted Patent
Utility
US 5,244,375 · App. 07/810,244
Plasma ion nitrided stainless steel press plates and applications for same
Inventors:
Kenneth Laurence, Wolfgang Kieferle
Patented Case
View Patent ↗
Granted: Sep 14, 1993
Filed: Dec 19, 1991
Inventors
Kenneth Laurence
Wolfgang Kieferle
Assignee (at issue)
Formica Technology, 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.