Granted Patent
Utility
US 5,194,473 · App. 07/525,729
Modified polyester composition and preparation process and use thereof
Inventors:
Hosei Shinoda, Masami Ohtaguro, Shigeru Iimuro
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: May 21, 1990
Inventors
Hosei Shinoda
Masami Ohtaguro
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.