Granted Patent
Utility
US 4,393,248 · App. 06/294,699
Flame retarded halogenated polyol
Inventors:
Stanley R. Sandler, Joseph M. Bohen
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Aug 20, 1981
Inventors
Stanley R. Sandler
Joseph M. Bohen
Assignee (at issue)
Pennwalt 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.