Granted Patent
Utility
US 4,471,013 · App. 06/546,508
Core strip for honeycomb core panels
Inventor:
Joseph A. Welzen
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Oct 28, 1983
Inventor
Joseph A. Welzen
Assignee (at issue)
TRE 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.