Granted Patent
Utility
US 5,608,115 · App. 08/373,083
Polythiol useful for preparing sulfur-containing urethane-based resin and process for producing the same
Inventors:
Koju Okazaki, Yoshinobu Kanemura, Teruyuki Nagata
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Jan 17, 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.