Granted Patent
Utility
US 4,778,395 · App. 07/111,321
Header apparatus
Inventor:
Hiroshi Narita
Patented Case
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Granted: Oct 18, 1988
Filed: Oct 22, 1987
Inventor
Hiroshi Narita
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.