Granted Patent
Utility
US 4,255,596 · App. 06/124,416
Preparation of ethylene glycol from ethylene
Inventors:
Ching-Yong Wu, Thaddeus P. Kobylinski, John E. Bozik
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Feb 25, 1980
Inventors
Ching-Yong Wu
Thaddeus P. Kobylinski
John E. Bozik
Assignee (at issue)
Gulf Research & Development Company
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.