Granted Patent
Utility
US 5,216,112 · App. 07/745,422
Phenolic resin and method for preparing same
Inventors:
Shinji Ando, Yukio Fukui, Shigeru Iimuro
Patented Case
View Patent ↗
Granted: Jun 1, 1993
Filed: Aug 15, 1991
Inventors
Shinji Ando
Yukio Fukui
Shigeru Iimuro
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.