Granted Patent
Utility
US 4,435,543 · App. 06/367,514
Phenolic resin compositions
Inventors:
Kenji Ema, Junji Hara, Shuhei Ikado, Hideo Kawashima, Tomohide Yokoo
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Apr 12, 1982
Inventors
Kenji Ema
Junji Hara
Shuhei Ikado
Hideo Kawashima
Tomohide Yokoo
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.