Granted Patent
Utility
US 4,859,517 · App. 07/025,980
Formable honeycomb panel
Inventor:
H. Robert Hull
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Mar 16, 1987
Inventor
H. Robert Hull
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.