Granted Patent
Utility
US 5,260,198 · App. 07/677,413
Cloned tyrosine phenol-lyase gene, recombinant plasmid containing the same and escherichia coli transformed with the same
Inventors:
Satoru Iwamori, Toshihiro Oikawa, Setsuo Yoshino, Kenichi Ishiwata
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Mar 29, 1991
Inventors
Satoru Iwamori
Toshihiro Oikawa
Setsuo Yoshino
Kenichi Ishiwata
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.