Granted Patent
Utility
US 6,057,402 · App. 09/133,507
Long and short-chain cycloaliphatic epoxy resins with cyanate ester
Inventors:
Xiao-Qi Zhou, Henry Wevick, Nancy Iwamoto, Shao-Wei Li, Alan Grieve
Patented Case
View Patent ↗
Granted: May 2, 2000
Filed: Aug 12, 1998
Inventors
Xiao-Qi Zhou
Henry Wevick
Nancy Iwamoto
Shao-Wei Li
Alan Grieve
Assignee (at issue)
Johnson Matthey 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.