Granted Patent
Utility
US 5,772,862 · App. 08/429,845
Film comprising silicon dioxide as the main component and method for its productiion
Inventors:
Eiichi Ando, Akira Mitsui, Junichi Ebisawa, Koichi Suzuki, Kiyoshi Matsumoto, Takuji Oyama
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Apr 27, 1995
Inventors
Eiichi Ando
Akira Mitsui
Junichi Ebisawa
Koichi Suzuki
Kiyoshi Matsumoto
Takuji Oyama
Assignee (at issue)
ASAHI GLASS 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.