Granted Patent
Utility
US 6,455,148 · App. 09/613,337
Composite panel with a foamed plastic core
Inventors:
Robert Preston Spears, Burwell Lewis Lafoon, Jr., Joe Peace, Karl-Heinz J. Reilmann
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Jul 7, 2000
Inventors
Robert Preston Spears
Burwell Lewis Lafoon, Jr.
Joe Peace
Karl-Heinz J. Reilmann
Assignee (at issue)
Reynolds Metals 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.