Granted Patent
Utility
US 5,358,397 · App. 08/060,106
Apparatus for extruding flowable materials
Inventors:
Robert M. Ligon, Thomas B. Carter, Jurg Hauptli
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: May 10, 1993
Inventors
Robert M. Ligon
Thomas B. Carter
Jurg Hauptli
Assignee (at issue)
L&L Products, 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.