Granted Patent
Utility
US 4,401,778 · App. 06/303,159
Flame retardant thermoplastic compositions
Inventors:
Henry J. Barda, Joseph Lesniewski
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Sep 17, 1981
Inventors
Henry J. Barda
Joseph Lesniewski
Assignee (at issue)
Saytech, Inc.
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.