Granted Patent
Utility
US 6,096,792 · App. 08/848,021
Silicone rubber sponge composition and silicone rubber sponge using it
Inventors:
Hiroyoshi Iijima, Makoto Sawada, Isao Iida
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: Apr 28, 1997
Inventors
Hiroyoshi Iijima
Makoto Sawada
Isao Iida
Assignee (at issue)
Toshiba Silicone Co., Ltd.
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.