Granted Patent
Utility
US 5,139,596 · App. 07/531,184
Continuous process for the preparation of thermoplastic honeycomb
Inventor:
Barry M. Fell
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: May 31, 1990
Inventor
Barry M. Fell
Assignees (at issue)
BASF Structural Materials, Inc.
Thermoplastic Products Corporation
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.