Granted Patent
Utility
US 6,368,991 · App. 09/376,247
Foamed facer and insulation boards made therefrom
Inventors:
Charles J. Horner, Jr., Frank S. Franzyshen, Murray Sherman
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Aug 18, 1999
Inventors
Charles J. Horner, Jr.
Frank S. Franzyshen
Murray Sherman
Assignee (at issue)
BUILDING MATERIALS INVESTMENT 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.