Granted Patent
Utility
US 5,451,695 · App. 08/368,867
Polymerizable monomer useful for the preparation of high hardness transparent resins
Inventors:
Noboru Kawasaki, Katsuyoshi Sasagawa, Toshiyuki Suzuki, Kenichi Fujii
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Jan 5, 1995
Inventors
Noboru Kawasaki
Katsuyoshi Sasagawa
Toshiyuki Suzuki
Kenichi Fujii
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.