Granted Patent
Utility
US 5,316,604 · App. 08/120,028
Process for the preparation of thermoplastic sandwich structures
Inventor:
Barry M. Fell
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Sep 13, 1993
Inventor
Barry M. Fell
Assignee (at issue)
Hexcel 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.