Granted Patent
Utility
US 6,136,573 · App. 09/446,195
Process for producing alkali metal [S,S]-ethylenediamine-n,n'-disuccinates
Inventors:
Makoto Kaneko, Takakazu Endo, Toshihiko Fukuda, Mami Kato
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Dec 17, 1999
Inventors
Makoto Kaneko
Takakazu Endo
Toshihiko Fukuda
Mami Kato
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.