Granted Patent
Utility
US 6,111,148 · App. 09/449,675
Process for producing tertiary butyl alcohol
Inventors:
Akira Ogawa, Kenichi Fujimoto, Yasutaka Nakashima
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Nov 30, 1999
Inventors
Akira Ogawa
Kenichi Fujimoto
Yasutaka Nakashima
Assignee (at issue)
MITSUBISHI ELECTRIC 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.