Granted Patent
Utility
US 4,978,789 · App. 07/376,929
Process for production of alkenyl substituted aromatic compound
Inventors:
Katsuo Taniguchi, Shigeki Fujikawa, Yoshito Kurano
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Jul 10, 1989
Inventors
Katsuo Taniguchi
Shigeki Fujikawa
Yoshito Kurano
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.