Granted Patent
Utility
US 5,056,512 · App. 07/481,222
Multilayered hood with elastomeric neck seal
Inventors:
James W. Bower, James K. Odle, Evan B. Welch
Patented Case
View Patent ↗
Granted: Oct 15, 1991
Filed: Feb 20, 1990
Inventors
James W. Bower
James K. Odle
Evan B. Welch
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.