Granted Patent
Utility
US 5,089,543 · App. 07/656,399
Epoxy resin electrical encapsulation composition
Inventors:
Yoshinori Nakanishi, Takuya Kurio
Patented Case
View Patent ↗
Granted: Feb 18, 1992
Filed: Feb 15, 1991
Inventors
Yoshinori Nakanishi
Takuya Kurio
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.