Granted Patent
Utility
US 4,876,355 · App. 07/278,200
Powdered imidazoline product and method for producing same
Inventors:
Leonard Hughes, James G. Fuller, Gary W. Earl
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: Oct 21, 1988
Inventors
Leonard Hughes
James G. Fuller
Gary W. Earl
Assignee (at issue)
Sherex Chemical Co., 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.