Granted Patent
Utility
US 5,844,028 · App. 08/961,278
Cyclic phosphorus containing flame retardant compounds
Inventor:
Frank E. Paulik
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Oct 30, 1997
Inventor
Frank E. Paulik
Assignee (at issue)
Soliton, 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.