Granted Patent
Utility
US 5,332,537 · App. 07/991,990
Method and binder for use in powder molding
Inventors:
Karl Frank Hens, Donald Kupp, Ricky A. Alexander, Karl-Heinz Schofalvi
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Dec 17, 1992
Inventors
Karl Frank Hens
Donald Kupp
Ricky A. Alexander
Karl-Heinz Schofalvi
Assignee (at issue)
PCC Airfoils, 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.