Granted Patent
Utility
US 5,523,467 · App. 08/401,807
Process for the preparation of aliphatic polyisocyanates
Inventors:
Koju Okazaki, Yoshinobu Kanemura, Teruyuki Nagata
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Mar 10, 1995
Inventors
Koju Okazaki
Yoshinobu Kanemura
Teruyuki Nagata
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.