Granted Patent
Utility
US 5,214,155 · App. 07/875,464
Method for 1,2-substituted imidazoline compositions
Inventors:
Donald R. Hollingsworth, Jeffrey Edwards
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Apr 29, 1992
Inventors
Donald R. Hollingsworth
Jeffrey Edwards
Assignee (at issue)
Texaco Chemical 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.