Granted Patent
Utility
US 5,750,631 · App. 08/672,433
Halogenated epoxy resin, production of said resin, flame retardant, and flame-retarded epoxy resin composition
Inventors:
Yasuyuki Murata, Yoshinori Nakanishi
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Jun 28, 1996
Inventors
Yasuyuki Murata
Yoshinori Nakanishi
Assignee (at issue)
SHELL OIL 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.