Granted Patent
Utility
US 5,312,511 · App. 07/873,255
Apparatus for the preparation of thermoplastic honeycomb
Inventor:
Barry M. Fell
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Apr 24, 1992
Inventor
Barry M. Fell
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.