Granted Patent
Utility
US 5,226,409 · App. 07/622,267
Protective hood with elastomeric neck seal
Inventors:
James W. Bower, Jerome Hochberg, James K. Odle
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Dec 5, 1990
Inventors
James W. Bower
Jerome Hochberg
James K. Odle
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.