Granted Patent
Utility
US 5,817,872 · App. 08/509,093
Copper catalyst for the hydration of nitrile and preparation thereof
Inventors:
Tadatoshi Honda, Hiroshi Ohe, Shinichiro Ichikawa, Hisaharu Kuboyama, Satoru Miyazoe
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Aug 1, 1995
Inventors
Tadatoshi Honda
Hiroshi Ohe
Shinichiro Ichikawa
Hisaharu Kuboyama
Satoru Miyazoe
Assignee (at issue)
MITSUI CHEMICALS, INC.
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.