Granted Patent
Utility
US 5,113,908 · App. 07/557,129
Multistep trim design
Inventor:
Joseph H. Steinke
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Sep 4, 1990
Inventor
Joseph H. Steinke
Assignee (at issue)
Dresser Industries, 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.