Granted Patent
Utility
US 5,089,658 · App. 07/588,705
Citric ester diluents
Inventors:
Jimmy D. Elmore, Elizabeth G. Zylla
Patented Case
View Patent ↗
Granted: Feb 18, 1992
Filed: Sep 27, 1990
Inventors
Jimmy D. Elmore
Elizabeth G. Zylla
Assignee (at issue)
Hi-Tek Polymers, 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.