Granted Patent
Utility
US 5,096,428 · App. 07/752,941
Header device
Inventors:
Nai Hock Lwee, Meng Kuang Kan
Patented Case
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Granted: Mar 17, 1992
Filed: Aug 20, 1991
Inventors
Nai Hock Lwee
Meng Kuang Kan
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.