Granted Patent
Utility
US 5,382,696 · App. 08/132,186
Method for preparing methylamines
Inventors:
Tadamitsu Kiyoura, Kazuhiro Terada
Patented Case
View Patent ↗
Granted: Jan 17, 1995
Filed: Oct 6, 1993
Inventors
Tadamitsu Kiyoura
Kazuhiro Terada
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.