Granted Patent
Utility
US 4,675,241 · App. 06/664,467
Honeycomb part with densified outer periphery
Inventor:
Harold R. Hull
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Oct 25, 1984
Inventor
Harold R. 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.