Granted Patent
Utility
US 5,194,130 · App. 07/631,551
Method to produce sodium citrate using electrodialysis
Inventors:
Carolyn Byszewski, Yu-Chih Chiao
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Dec 21, 1990
Inventors
Carolyn Byszewski
Yu-Chih Chiao
Assignee (at issue)
AlliedSignal, 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.