Granted Patent
Utility
US 4,291,080 · App. 06/135,388
Sound attenuating structural panel
Inventors:
Richard A. Ely, Sherwood W. McClaren, III
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Mar 31, 1980
Inventors
Richard A. Ely
Sherwood W. McClaren, III
Assignee (at issue)
Vought 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.