Granted Patent
Utility
US 5,508,244 · App. 08/293,208
Pretreatment process of zeolite catalyst and process for producing alcohol using the pretreated catalyst
Inventors:
Kouji Watanabe, Yutaka Mori
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Aug 19, 1994
Inventors
Kouji Watanabe
Yutaka Mori
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
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.