Granted Patent
Utility
US 6,682,333 · App. 09/998,818
Quick-release extrusion die
Inventors:
John A. Ulcej, Dale P. Pitsch, Jeffrey J. Steltz
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Oct 25, 2001
Inventors
John A. Ulcej
Dale P. Pitsch
Jeffrey J. Steltz
Assignee (at issue)
EXTRUSION DIES INDUSTRIES, LLC
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.