Granted Patent
Utility
US 4,239,823 · App. 05/013,651
Automobile sound insulating panel and method of making same
Inventors:
Anthony J. Alcaraz, Christopher W. Chandler, Thomas G. Edmundson, James Patrick Nolan
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: Feb 21, 1979
Inventors
Anthony J. Alcaraz
Christopher W. Chandler
Thomas G. Edmundson
James Patrick Nolan
Assignee (at issue)
DayCo Holdings, LP
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.